for there to be 结构

* for there to be 结构是there be 句型的不定式形式， 意思为 “有，存在”。
* It is impossible for there to be any more apples．不可能有更多的苹果。
* For there to be so few people in the streets was unusual． 街上这么少人很不寻常。
* For there to be life there must be air and water. 一定要有空气和水才有生命。