During the conference call, her voice sounded muffled because she forgot to remove her mask.

在電話會議中，她忘了拿下口罩，所以聲音聽起來悶悶的。

Guests complained about muffled announcements in the departure lounge and nearly missed their flight.

旅客抱怨候機室的廣播聲音模糊不清，差點錯過班機。

Through the closed meeting room door, we heard muffled laughter after the budget presentation.

預算簡報結束後，我們隔著緊閉的會議室門聽到悶悶的笑聲。