before doing sth

efore doing sth 做某事之前 （完全正确的用法）
before having to make a turn 在必须转弯之前
例句与用法
1.We must have a plan before doing any work.
做任何工作前,我们必须订好计划.
2.We all should warm up before doing some exercises.
开始做运动前,我们都应该热身.
3.He always consulted others before doing anything .
他做什么事情都先和别人商量.
4.Take your time to reflect before doing important things.
在做重大的事情之前要从容不迫地思考一下.
5.But before doing so,I will briefly review recent events.
但在讲之前,我简短地回顾一下当前发生的情况.
6.Take enough time to reflect before doing important things.
在做重要事之前,先考虑一段时间.