A staff member arranges sunglasses at a new duty-free experience shop opened in a resort in Sanya, south China's Hainan Province, April 15, 2020. Two more duty-free experience shops of Sanya International Duty-Free Shopping Complex have opened recently in Sanya. Customers can buy goods online after visiting the experience shops. (Xinhua/Pu Xiaoxu)

A customer tries a suitcase at a new duty-free experience shop opened in a resort in Sanya, south China's Hainan Province, April 15, 2020. Two more duty-free experience shops of Sanya International Duty-Free Shopping Complex have opened recently in Sanya. Customers can buy goods online after visiting the experience shops. (Xinhua/Pu Xiaoxu)

A customer tries out a pair of sunglasses at a new duty-free experience shop opened in a resort in Sanya, south China's Hainan Province, April 15, 2020. Two more duty-free experience shops of Sanya International Duty-Free Shopping Complex have opened recently in Sanya. Customers can buy goods online after visiting the experience shops. (Xinhua/Pu Xiaoxu)

A customer tries out a pair of sunglasses at a new duty-free experience shop opened in a resort in Sanya, south China's Hainan Province, April 15, 2020. Two more duty-free experience shops of Sanya International Duty-Free Shopping Complex have opened recently in Sanya. Customers can buy goods online after visiting the experience shops. (Xinhua/Pu Xiaoxu)

Customers visit a new duty-free experience shop opened in a resort in Sanya, south China's Hainan Province, April 15, 2020. Two more duty-free experience shops of Sanya International Duty-Free Shopping Complex have opened recently in Sanya. Customers can buy goods online after visiting the experience shops. (Xinhua/Pu Xiaoxu)