An over-achiever is someone who works extremely hard to succeed, and then feels low, restless or angry if they do not hit every high mark they set for themselves. It is not simply “a person who does well.” Many people do well and can still sleep at night. The extra meaning here is the push that never quite stops, and the unhappiness when the result is not perfect.

An over-achiever是 someone who works extremely hard to succeed一個為了成功拚命努力的人, and然後 if they do not hit every high mark they set for themselves只要沒有達到自己設下的每一個高標準, then feels low, restless or angry就會覺得低落、心浮氣躁或生氣。It它 is not simply "a person who does well."不是單純「表現很好的人」。Many people很多人 do well表現得好, and can still sleep at night晚上還是照樣睡得著。The extra meaning here這裡多出來的意思 is the push that never quite stops是那種停不下來的逼迫, and而且是 the unhappiness when the result is not perfect結果不夠完美時的那種不開心。

Schools use it about students; offices use it about staff who cannot leave a task alone. It can sound like praise — so driven, so strong — though actually it often carries a little worry, as if the person does not know how to rest.

Schools學校 use it about students會用這個字形容學生; offices公司行號 use it about staff who cannot leave a task alone則用它形容那種放不下工作的員工。It它 can sound like praise聽起來可能像是稱讚 — so driven, so strong說這個人多拚、多厲害 — though actually不過事實上 it often carries a little worry常常帶著一點擔心, as if the person does not know how to rest好像這個人不知道怎麼休息。

You will also see it written as one word, overachiever, especially in American English; the meaning does not change.

You will also see it written as one word你也會看到它寫成一個字, overachieveroverachiever, especially in American English尤其在美式英文裡; the meaning does not change意思不變。