European Commission President Ursula von der Leyen attends a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)

European Commission President Ursula von der Leyen attends a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)

European Commission President Ursula von der Leyen attends a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)

Photo taken on Dec. 24, 2020 shows the headquarters of the European Commission in Brussels, Belgium. Britain and the European Union (EU) have reached a deal on their post-Brexit trade relations, British media reported here Thursday. (Xinhua/Zhang Cheng)

European Commission President Ursula von der Leyen attends a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)

Photo taken on Dec. 24, 2020 shows the EU flags flying outside the European Commission headquarters in Brussels, Belgium. Britain and the European Union (EU) have reached a deal on their post-Brexit trade relations, British media reported here Thursday. (Xinhua/Zhang Cheng)

(201224) -- LONDON, Dec. 24, 2020 (Xinhua) -- Photo taken on Dec. 21, 2020 shows the Union Jack flag and the Big Ben clock tower of the Houses of Parliament in London, Britain. Britain and the European Union (EU) have reached a deal on their post-Brexit trade relations, British media reported here Thursday. (Xinhua/Han Yan)

European Commission President Ursula von der Leyen (C) and EU's chief Brexit negotiator Michel Barnier (L) attend a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)

EU's chief Brexit negotiator Michel Barnier attends a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)

EU's chief Brexit negotiator Michel Barnier attends a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)

European Commission President Ursula von der Leyen attends a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)

EU's chief Brexit negotiator Michel Barnier attends a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)

European Commission President Ursula von der Leyen attends a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)

EU's chief Brexit negotiator Michel Barnier attends a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)

European Commission President Ursula von der Leyen attends a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)

European Commission President Ursula von der Leyen (C) and EU's chief Brexit negotiator Michel Barnier (L) attend a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)

European Commission President Ursula von der Leyen attends a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)

European Commission President Ursula von der Leyen attends a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)

European Commission President Ursula von der Leyen (C) and EU's chief Brexit negotiator Michel Barnier (L) attend a press conference on the post-Brexit trade talks in Brussels, Belgium, Dec. 24, 2020. European Commission President Ursula von der Leyen said on Thursday that the bloc has reached a fair and balanced agreement with the United Kingdom, after a prolonged last-minute negotiation over the sticking points regarding the future relationship. (Xinhua/Zheng Huansong)