PREFIX （用于形容词或动词后）表示“过分”，“过度” You can add over- to an adjective or verb to indicate that a quality exists or an action is done to too great an extent. For example, if you say that someone is being over-cautious, you mean that they are being too cautious. （用于形容词或动词后）表示“过分”，“过度”
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Tony looked tired and over-anxious.
托尼看起来很疲惫而且过分焦虑。
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When depressed, they dramatically overindulge in chocolate and sweets.
情绪低落的时候，她们就疯狂地猛吃巧克力和糖果。