lip sync

• 嘴唇动作与预先录制的歌声或语音同步，通常在表演或视频中用来制造现场演唱或说话的错觉。

The act of moving one's lips in synchronization with a pre-recorded vocal track, typically in a performance or video, to give the illusion of live singing.

1. Mouthing words to a recordingB1informal

   The act of moving one's lips in synchronization with a pre-recorded vocal track, often to give the illusion of live singing.

   对口型

   • The singer was caught lip-syncing during the concert.
   • Many performers use lip sync for complex dance routines.
   • The audience noticed the lip sync was slightly off.

2. Mimicking speech silentlyB2informal

   To silently mouth the words someone else is saying, often as a joke or to practice.

   无声对口型

   • She lip-synced his entire speech behind his back.
   • The children were lip-syncing to the radio in the car.
   • He lip-synced the lyrics perfectly to the music video.