let loose

Teenagers need a place to let loose.

青少年需要一个可以自由放松。

A team of professionals were let loose on the project.

在这个项目中，一队专业人可自主事。

I fear for the city with this madman let loose in it.

让这位神病患者出来自由活动，我真为这座城市担心。

The pilot shot up to a high altitude where he let loose full blat.

飞飞机猛升上了高空，然后全速前进。