1. Tear ducts operate on a normal basis to lubricate and protect the eye. When you have an emotion, they overact and create tears.
泪腺在正常情况下工作以润滑并保护眼球。当你有了很强的情绪时,他们就会反应过度并产生泪水。

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2. Tear ducts operate on a normal basis to lubricate and protect the eye. When you have an emotion, they overact and create tears.
泪腺在正常情况下工作以润滑并保护眼球。当你有了很强的情绪时,他们就会反应过度并产生泪水。

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3. Amateur actors often overact.
业余演员往往表演过火。

-- 来源 -- 汉英 - 翻译参考

4. Act in a deliberately artifical or exaggerated way; overact
以做作或夸张的方式作表演;表演过火

-- 来源 -- 英汉 - 短句参考

5. an actor who tends to go over the top,ie to overact
表演得过火的演员.

-- 来源 -- 英汉 - 翻译参考[网络]