The vast majority of people are related to the same wooden matches, a favorite stay motionless.

绝大多数火柴人都跟木头相同，喜爱一动不动地呆著。

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Even then, the penguins are cautious; they stay in the water only long enough to feed, and they're adept at remaining motionless when they're on thin ice and spot a leopard seal.

尽管如此，企鹅也十分谨慎：它们仅仅在捕食时才呆在水下；一旦意识到冰面很薄或是附近出现海豹，它们就会紧紧地趴在冰面上，一动不动。

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