我在写PS 前几天拿给一个老师看 其中有一个句子In one symposium whose topic was “XXX” 被改成了In one symposium, the topic of which was “XXX” 我当初写的时候查过这个whose-----belonging to who or which: a grammatical word used to talk or ask about the person or thing something belongs to(Microsoft Encarta 微软大百科那个词典)