3)The reason for this is obvious. 4)The reason for this is not far to seek. 5)The reason for this is that... 例如: There are three reasons for the changes that have taken p...
4. 时间状语从句:常由when和while引导 Eg: When it comes to education, the majority of people believe that education is a lifetime study. 说到教育,大部分人认为其是一个终生的学...
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