He has to push down hard on the plunger, and the process is slow.

他不得不用力推挤针管，这个过程非常慢。

youdao

Push hard and the lever will go down.

用力推就能把控制杆按下去。

youdao

Push it down hard with your foot several times.

硬推下来，与你的脚好几次。

youdao

Push it down hard with your foot several times.

硬推下来，与你的脚好几次。

youdao