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A mutiny is when people who are supposed to obey a leader — especially soldiers or sailors — refuse those orders and try to take control themselves.
A mutiny is whena mutiny（兵變、譁變）指的是 people who are supposed to obey a leader本來應該服從領導者的人 — especially soldiers or sailors尤其是軍人或水手 — refuse those orders and try to take control themselves拒絕那些命令，並試圖自己奪取控制權。
It is stronger and more particular than a complaint or a protest. The people are already under someone's command; they break that.
It is stronger and more particular than a complaint or a protest它比complaint（抱怨）或protest（抗議）更強烈，也更具體。The people are already under someone's command這些人本來就在某人的指揮之下; they break that他們打破了那個關係。
Navies used the word a lot, because a ship is a small world with nowhere to go, so a fight over who is in charge is deadly serious.
Navies used the word a lot海軍很常用這個字, because a ship is a small world with nowhere to go因為一艘船是個無處可去的小世界, so a fight over who is in charge is deadly serious所以誰說了算的爭執，是攸關生死的大事。
You can also stretch it, a little : “The class mutinied when the teacher gave homework on Friday.” That stretch is common, but the core is still “we will not follow you any more.” As a verb, to mutiny means to take part in that rising.
You can also stretch it, a little playfully你也可以帶點玩笑地把這個字用得寬鬆一點: "The class mutinied when the teacher gave homework on Friday."「The class mutinied when the teacher gave homework on Friday（老師星期五出作業，全班就集體造反了）。」 That stretch is common這種延伸用法很常見, but the core is still "we will not follow you any more."但核心意思還是「我們不再服從你了」。 As a verb, to mutiny means to take part in that rising當動詞用的時候，to mutiny指的是參與那場起義。
原始詞典資料3 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。
mutinynoun/ˈmju.tə.ni/
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An organized rebellion against a legally constituted authority, especially by seamen against their officers.
- In every mutiny against the discipline of the college, he was the ringleader.
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Violent commotion; tumult; strife.
- Raise a mutiny betwixt yourselves.
mutinyverb/ˈmju.tə.ni/
- 1
To commit a mutiny.
- The crew of the Bounty mutinied because of the harsh discipline of Captain Bligh.
- In the long run, the High Seas Fleet would rarely emerge looking for a fleet action, and, indeed, would be withdrawn if it seemed that the Grand Fleet was out. In 1918, when faced with an order to sail against the British, who had now been augmented by the Sixth Battle Squadron, made up of American warships, the sailors of the High Seas Fleet mutinied instead.
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。