expel|expels

救生员教我如何从肺部排出水。

The lifeguard taught me how to ___expel water from my lungs.

这台机器会把水从管道里排出来。

This machine ___expels water from the pipes.

咳嗽帮助身体排出异物。

Coughing helps the body ___expel foreign objects.