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训练时,他们是无话不谈、无事不说的兄弟姊妹;赛场上,他们是你争我夺、见面分外眼红的对手。世青赛后,他们成了亲兄热弟了。
When training, they are talkative, nonchalantly brothers and sisters; the arena, you are fighting for you, meeting extremely jealous opponents. After the World Youth Championship, they became close brothers.