问题描述：
1.He likes to play jokes at others.2.He likes to
1.He likes to play jokes at others.
2.He likes to play jokes on ithers.
上面两个句子哪个是对的,为什么?
1.He likes to play jokes at others.
2.He likes to play jokes on ithers.
上面两个句子哪个是对的,为什么?
问题解答：
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