英语句子语法理解the student is in the position to cope with new sent

这个可不要把pattern 和as放一起看哦
as and when 表示的意思是 at the time that something happens 到 ... 时候 例如：
We don't own a car- we just rent one as and when we need it.
我们没有车,只是在需要的时候租一辆.
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