Question

come early to ensure getting a good seat 中ensure为什么是+doing s

Answer 1

ensure的意思是“保证;担保”

[+that][+v-ing]

给你写例句

I can't ensure his being on time.

我不能保证他的准时.

I can't ensure that he will be there on time.

我不能担保他会及时到那儿.

This medicine will ensure you a good night's sleep.

这药将保证你一晚睡眠良好.