骨干企业的英文：
key enterprise

We have a key for the door of the house and a key for starting the car.
我们有房间门的钥匙和发动汽车的钥匙。

I left the key in the lock.
我把钥匙留在锁上，忘了取下来。

He fished in the bag for the keys.
他在袋子里摸找钥匙。

This is a key laboratory of atmosphere sounding.
这是个大气探测重点实验室。

Idleness is the key of beggary
懒汉出乞丐

She is a woman of great enterprise.
她是一位事业心极强的女子。

Many enterprises will be forced to close.
很多家企业将被迫倒闭。

The project is funded by private enterprise.
这项工程是由私人企业提供资金的。

You can spark the spirit of enterprise.
你们可以激发事业上的进取心。

There is no question about the validity of the enterprise.
对这企业的合法性没有任何怀疑。