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couldyou...?和pleasecouldyou...有什么特别的区别吗?pleaseletusknowyourrequirements.和Iwaswonderingifyoucould...?如果和前面的两个句子对号入座的话,怎么选

题目详情
could you ...?和 please could you ...有什么特别的区别吗?
please let us know your requirements.和 I was wondering if you could ...? 如果和前面的两个句子对号入座的话,怎么选
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答案和解析
could you please let us know your requirements.
I was wondering if you could let us know your requirements.
其实也在口语里没太大差别,could本来就有委婉的意思了,please也是表示客气,多加个PLS就是表示你更加诚恳.