muffler|mufflers

这辆车的消音器坏了，引擎声音变得很大。

The car's ___muffler is broken, making the engine very loud.

他的车噪音很大，可能需要更换消音器了。

His car is very loud, maybe the ___mufflers need to be replaced.

天气很冷，她戴了一条羊毛围巾保暖。

She wore a woolen ___muffler to keep warm in the cold weather.