A chip on your shoulder 指因觉得受到不公平对待而长期心怀不满。一个人认为生活亏待了他，例如因为出身或教育背景，就容易动怒，别人可能会说他 has a chip on his shoulder。这是一种带批评意味的评价，当面这样说容易冒犯对方。
什么情境适合说 a chip on your shoulder？
写一句英语，检查习语是否适合当前情境，以及哪里需要修改。
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have a chip on your shoulder (about + noun/-ing); with a chip on his/her shoulder
- Dan has a chip on his shoulder about his accent and thinks everyone is laughing at him.
- She came to the meeting with a chip on her shoulder and argued with everyone.
修改原因
修改前My cousin has a chip on the shoulder about being short.
修改后My cousin has a chip on his shoulder about being short.
这里看起来只用 the 就够了，但这个表达提到身体部位时，需要用与人对应的物主限定词：on his shoulder, on my shoulder。修正把 the 换成了 his。
Hold a grudge against someone 指因为某个人做过某件事而一直记恨他：She still holds a grudge against her old boss。A chip on your shoulder 的范围更广，强调因个人处境而长期对周围的人抱有不满。在作文里，resentment 或 feel resentful 更中性。
动手练习
Jake thinks people look down on him because he grew up poor, so he has ___ and gets angry at the smallest joke.
查看答案
a chip on his shoulder — Jake 认定别人因为他出身贫穷而看不起他，任何玩笑都会让他生气。这正是这种长期的不满：a chip on his shoulder。A lot on his plate 表示有很多事要处理，与怨气无关。
描述一位电影或书中的角色，他似乎对整个世界都怀有怨气。说明为什么会这样，以及这种情绪怎样表现出来。
In the film, the young boxer has a chip on his shoulder because nobody believed in him, so he picks fights even with his own coach.
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