inert

Helium is an inert gas, which is why it is safe to use in party balloons.

(Chinese) 氦气是一种惰性气体，这就是为什么在派对气球中使用它是安全的。

The reactive chemical was stored in a container filled with inert nitrogen to prevent fire.

(Chinese) 这种反应性化学物质存放在装满惰性氮气的容器中，以防止火灾。

The body of the hibernating bear lay inert in the dark cave all winter.

(Chinese) 冬眠熊的身体整个冬天都一动不动地躺在黑暗的洞穴里。

He lay inert on the sofa, too exhausted to even lift the remote control.

(Chinese) 他瘫坐在沙发上，精疲力竭，甚至连遥控器都拿不起来。