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看懂冬奥
:冰壶上为什么会亮红灯和绿灯?What are those red and green lights on curling stones?
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2022-02-15
看懂冬奥
:观众为何向花样滑冰运动员扔毛绒玩具?Why do people throw stuffed animals at figure skaters?
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2022-02-09
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