Be blocked

垒───Base;被───cover

He acted from base motives.───他的行为动机卑鄙。

He didn't make it past first base.───他未能跑过一垒。

He's gone AWOL from his base.───他从基地开了小差。

The front and rear base plates are sealed into a whole body injected with inert gas of the given pressure.───将前后两基板对位、封接成一个整体，内充一定压力的惰性气体。

Use of the drives is now severely restricted throughout the military. But the base at Creech was one of the exceptions, until the virus hit.───现在军方电脑的驱动使用已经受到严格限制，但是也有些例外，比如克里奇空军基地。

But he said: "The pace at which we expand depends on the skills base we can find. "───但他表示：“我们扩张的速度，取决于我们能找到的合格员工数量。”