Cats which are unpredictable will have a collar on them as a warning - meaning they may bite or scratch if you tried to pick them up or touch them.

猫是令人琢磨不透的，他们会将项圈作为一个警告-这意味着如果您想接近或触摸他们时，他们可能会咬伤或划伤你。

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People may bite their nails when they are nervous.

有的人在紧张的时候喜欢啃指甲。

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Be careful of an outburst: they may suddenly bite or scratch you.

还要小心它们突然爆发，咬你或抓伤你。

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They may be less expensive, she acknowledged, but they aren't stable enough to balance the bite.

CNN: Don't let stress be such a grind

His backbenchers may be plotting to dump him, but they loved this particular sound bite.

BBC: Oh the sincerity of it all.