Photo taken on Aug. 15, 2021 shows a view of the Ningbo-Zhoushan Port in Ningbo, East China's Zhejiang Province. The Ningbo-Zhoushan Port saw its container throughput reach 20 million TEUs (Twenty-foot Equivalent Units) on Sunday, one month earlier than last year. (Photos: Xinhua)

Photo taken on Aug. 15, 2021 shows a view of the Ningbo-Zhoushan Port in Ningbo, East China's Zhejiang Province. The Ningbo-Zhoushan Port saw its container throughput reach 20 million TEUs (Twenty-foot Equivalent Units) on Sunday, one month earlier than last year.

Photo taken on Aug. 15, 2021 shows a view of the Ningbo-Zhoushan Port in Ningbo, East China's Zhejiang Province. The Ningbo-Zhoushan Port saw its container throughput reach 20 million TEUs (Twenty-foot Equivalent Units) on Sunday, one month earlier than last year.

Photo taken on Aug. 15, 2021 shows a view of the Ningbo-Zhoushan Port in East China's Zhejiang Province. The Ningbo-Zhoushan Port saw its container throughput reach 20 million TEUs (Twenty-foot Equivalent Units) on Sunday, one month earlier than last year.

Photo taken on Aug. 15, 2021 shows a view of the Ningbo-Zhoushan Port in Ningbo, East China's Zhejiang Province. The Ningbo-Zhoushan Port saw its container throughput reach 20 million TEUs (Twenty-foot Equivalent Units) on Sunday, one month earlier than last year.