overachiever
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美[?o?v?r?'t?iv?(r)]
柯林斯高阶英汉双解学习词典释义
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VERB
（在学业或工作上）过于强求成功，过于争强好胜
If someone overachieves in something such as school work or a job, they work very hard, especially in a way that makes them tired or unhappy. They want to be successful because it is very important to them to do well and not because they enjoy what they are doing.
例句
...emotions such as guilt, compulsion to please or overachieve, or depression.
诸如愧疚、沮丧、总想取悦于人和凡事争强好胜等种种情绪
英英词典释义