Put your hand up if you need more paper.
若有人还要纸,请举手。
Put your hand up if you know the answer.
知道答案就举手。
Why didn't you put your hand up?
你为什么不举手?
In that case, please just put your hand up.
如果那样的话,请直接举手。
You can go up to her and put your hand on her shoulder and offer a hug and say,
你可以走过去,把手放在她的肩上,给她一个拥抱,说,
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