muffle

/ˈməfəl/

conceal or hide

中文释义：使声音低沉；压抑

The thick curtains muffled the noise from the busy street outside.

厚窗帘减弱了外面繁忙街道的噪音。

He tried to muffle his cough during the lecture to avoid disturbing others.

他试图在讲座中压低咳嗽声，以免打扰他人。