为了保证安全，门总是锁着的。

For reasons of security the door is always kept locked.

他们偷这辆汽车只是为了寻求刺激。

They stole the car just for the hell of it.

我说过我要去只是为了让他高兴。

I said I'd go just to keep him happy.

为了达到这个目标他们雇用了50名新职员。

With this end in view they employed 50 new staff.

为了卫生，请洗手。

In the interests of hygiene, please wash your hands.

她为了保护孩子，可以凶得像只老虎。

She'll fight like a tiger to protect her children.

我为了帮助他而花掉的每一秒钟都令我不痛快。

I begrudge every second I spent trying to help him.

现在学校之间为了招揽生源展开了激烈竞争。

There is now intense competition between schools to attract students.

为了赶上公共汽车，我不得不拼命跑。

I had to run like mad to catch the bus.