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The cat's ears began to twitch when it heard the faint sound of a mouse.

(Chinese) 当猫听到老鼠发出的微弱声音时，它的耳朵开始抽动。

His right eyelid would always twitch whenever he felt particularly stressed.

(Chinese) 每当他感到压力特别大时，他的右眼皮总会抽动。