compress

The machine uses hydraulic power to compress scrap metal into dense cubes.

(Chinese) 这台机器利用液压将废金属压缩成致密的立方体。

You must compress the air in the cylinder to create enough pressure for the engine to start.

(Chinese) 你必须压缩气缸中的空气，以产生足够的压力让发动机启动。