set about sth
常见例句
- When we watch a person running about looking for sth. in a field, the wise man can set a puzzle for all the spectators to solve:What has person lost?
当我们看见一个人在一片田野里跑来跑去在寻找东西时，智者出一个难题给旁观者去回答：那个人失掉了什么呢？
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