英语句子语法理解the student is in the position to cope with new sentence patterns as and when they occur.其中的patterns as 为什么加as
问题描述：
英语句子语法理解
the student is in the position to cope with new sentence patterns as and when they occur.
其中的patterns as 为什么加as
答
这里应该是省略，完整的是as they occur and when they occur
答
这里可能口语了话吧，as跟前面的没关系，as and when they occur表示正如当它们出现的时候吧
答
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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