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A doer is someone who actually does things, instead of only thinking, planning, or talking about them. You hear it as praise: "She's a doer." Teachers and bosses like the word in talks that try to make people work: we need doers, not just ideas. It is a little slogan-like — more common in that kind of speech than in quiet everyday chat — but everyone understands it. It is not rude. Though actually, being a doer is not always better than thinking; the word just points to action. It is a very old pattern: a person named for the verb they do.
實幹的人、做了再說的人（相對只想、只說不做）
組成From Middle English doer, from Old English dōere (“a doer; worker”), equivalent to do + -er.
同家族的字
- dothe verb this person is named for
原始詞典資料1 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
doernoun/ˈduː.ə/
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Someone who does, performs, or executes; an active person, an agent.
- a doer of good
- By the wisdom proclaimed of old the doer must suffer.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。