病人手术后躺在床上一动不动。

The patient lay ___inert in bed after the surgery.

氩气是一种惰性气体，不会与其他物质发生反应。

Argon is an ___inert gas that doesn't react with other substances.

化学课上那些惰性气体几乎不发生反应。

The ___inert gases in chemistry class hardly react at all.