during 和in的区分如题

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during 和in的区分如题
during 和in的区分
如题

during 和in的区分如题
1. during + some time只表示“在...期间”;
而in + some time有两个含义:“在...之后”和“在...期间”.
如:I'll return in 20 minutes. 我会在20分钟后回来.
2. 如果两者都表示“在...期间”时,有时可以换用.区别如下:
1)如果其后的宾语是明显表示时间段的短语,如twenty minutes, half an hour, two years等时,一般只用in.
2) 如果其后宾语是表示能延续一段时间的表示事情/活动类的名词时,则一般只用during.
如:during the summer/winter holiday;during the vacation;during my visit to Beijing;during his stay in Shanghai.

during 10 years是在这十年间...
in 10 years是在十年后...