派上用场英语

to put sth to good use;come in handy;be usedbe sent on usebe useful例句：1 Waterproof flashlight comes in handy at this point.防水手电筒来在这儿派上用场了。 2 Teacher: Come up against fire alarm, your sound can be sent on use.老师：碰到火警，你的声音倒能派上用场。3 Additionally it might be useful to make a copy of your passport.另外，一份护照复印件可能也会派上用场。4 Having a small mirror can come in handy when you want to see what's going on behind your line of sight.有一个面小镜子可以派上用场时，你可以看看会背着你的视线上发生什么。

I can finally put my knowledge into use.

put sth in the right position

what what put to good use

The knowledge I learned is finally utilized.utilize使用

English can be helpful/ useful.