欺人太甚 to bully someone too much
Explanation
形容欺负人太过分，令人无法忍受。
Describes bullying someone excessively, to the point of being unbearable.
Origin Story
春秋时期，鲁国国君鲁定公被权臣季孙氏、孟孙氏、叔孙氏三家把持，形同傀儡。一日，鲁定公听说孔子主张“君臣纲常”，便召见孔子，诉说季平子欺压百姓，欺人太甚，不把国君放在眼里。孔子分析鲁国的内忧外患，建议鲁定公联合齐国，整顿朝纲，恢复君威。鲁定公采纳了孔子的建议，开始整顿朝政，最终使鲁国国力有所增强。这则故事说明了，即使身处弱势地位，也要敢于反抗不公正的待遇，维护自己的权益。
During the Spring and Autumn period in China, the ruler of Lu, Duke Ding, was controlled by three powerful families, the Ji Sun, Meng Sun, and Shu Sun clans, and became a puppet ruler. One day, Duke Ding heard that Confucius advocated "the order of ruler and subject", so he summoned Confucius to complain about Ji Pingzi's oppression of the people. Ji Pingzi went too far and disregarded the ruler. Confucius analyzed the internal and external problems of Lu and suggested that Duke Ding form an alliance with Qi, rectify the government, and restore the authority of the ruler. Duke Ding followed Confucius' advice, reformed the government, and thus strengthened the power of Lu.
Usage
用于形容对人态度恶劣，行为过分。常用于口语中，表达不满和愤怒。
Used to describe bad attitude and excessive behavior toward people. Commonly used in spoken language to express dissatisfaction and anger.
Examples
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他总是仗势欺人，欺人太甚！
ta zongshi zhangshi qiren, qiren taishen!
He always bullies others, it's too much!
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老板这种做法欺人太甚，员工们都愤愤不平。
laoban zhezhong zuofaw qiren taishen, yuangongmen dou fenfenbuping
The boss's behavior is too much, the employees are very angry about it.