The mechanic said the delivery van needs a new muffler before the next shipping run.

技師說，這台送貨廂型車在下一趟出貨前需要換新的消音器。

Our facilities manager installed a muffler on the generator to reduce noise in the office.

我們的設施經理在發電機上加裝了消音器，以降低辦公室裡的噪音。

The rental car's muffler was damaged, so customer service arranged a replacement vehicle.

那輛租賃車的消音器損壞了，所以客服安排了一台替代車輛。