类别
学习重点
重点单词
politely,request,direction,polite,speaker,address,direct,correct,impolite,underground,whom
重点短语
ask for, for example, depend on, each other, such as, the way to
重点句式
1.Sometimes we even need to spend time leading into a request.
2.However,it is important to learn how to use the right languages in different situations.
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