guarantee 怎样保证才有效1

guarantee
vt. 保证；确保。后可跟名词、动词不定式、双宾语、that从句等结构。如： Neither wealth nor social position can guarantee happiness. 财富和地位都不能保证幸福。
We guarantee to deliver your goods within a week.
我们保证一周内交货。
The ticket will guarantee you free entry.
这张票可以保证你免费入场。
We guarantee that you will fall in love with her at first sight.
我们保证你会和她一见钟情。
be guaranteed to do sth. 肯定会；必定会。如：
That kind of behavior is guaranteed to make him angry.
那样的行为肯定会让他生气。
n. [C] 保证；确保。如：
He gave me a guarantee that it would never happen again.
他向我保证这种事情绝不会再发生。
[小试] 汉译英。