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Loose cannon
01
不稳定的人, 失控的人
a person who has lost their sanity, often momentarily
IdiomWhat is the origin of the idiom "loose cannon" and when to use it?
The idiom "loose cannon" originated from nautical terminology. In the era of sailing ships, a "loose cannon" referred to a cannon that had broken free from its moorings during naval battles. It is used to describe a person who is unpredictable, impulsive, and not under control, often acting in a way that can cause harm or problems.
Example
Do n't rely on him for critical tasks; he 's proven to be a loose cannon with his unreliable actions.
不要依赖他处理关键任务；他的不可靠行为证明了他是不稳定的人。
The new employee 's aggressive behavior is like a loose cannon in the office, causing tension among the team.
新员工的激进行为就像办公室里的不稳定的人，造成团队之间的紧张。
