muffle

n. 低沉的声音,消音器,上唇
v. 围裹,抑制,发低沉的声音

We muffled the oars to stop them splashing noisily.

我们裹住船浆以减小溅水声。

He walked out into the snow, heavily muffled up in a thick scarf and warm overcoat.

他雪天出门，裹着厚厚的围巾，穿着暖和的大衣。