一手遮天 cover the sky with one hand
Explanation
这个成语比喻依仗权势，独断专行，不让人说话，不让人反对，就像用一只手把天遮住一样。
This idiom describes a situation where someone uses their power to control everything and prevent other people from speaking up.
Origin Story
话说，在古代的一个朝代，有个权倾朝野的大臣名叫王大人。王大人出身显赫，从小便接受着良好的教育，而且天生就拥有着过人的智慧。他凭借着自己出色的能力，一路升迁，最后成为了朝廷里的肱骨之臣。 随着权力越来越大，王大人也越来越看不惯那些跟他作对的人。他经常仗着自己有权势，想干什么就干什么，而且还喜欢用一些阴险的手段来排挤和打击那些敢于和他对抗的人。 他甚至还把自己的亲信安排到各个重要的位置上，把持朝政，其他人根本就无法插手。久而久之，王大人就形成了一个只听命于他的人脉关系网， 他一个人就能掌控朝堂上的所有事情。 王大人一手遮天，做的事情越来越过分，他不仅贪污腐败，而且还肆意妄为，把国家治理得一塌糊涂。 他还经常利用自己的权力，把一些无辜的人陷害入狱，甚至把他们处死。 他的所作所为，引起了很多人的不满，但是，他们都害怕王大人，不敢公开反对他的做法。 于是，王大人就更加肆无忌惮地为所欲为，成为了人们口中的“一手遮天”的大恶人。
Once upon a time, in an ancient dynasty, there was a powerful minister named Lord Wang. Lord Wang came from a distinguished family and received a good education from an early age. He was also naturally intelligent. Relying on his outstanding abilities, he rose through the ranks until he became a key minister in the court. As his power grew, Lord Wang became increasingly intolerant of those who opposed him. He often took advantage of his power to do whatever he wanted, and he liked to use cunning tactics to squeeze out and attack those who dared to confront him. He even placed his confidants in important positions, controlling government affairs, others had no chance to intervene. Over time, Lord Wang formed a network of relationships that only obeyed him. He alone could control all matters in the court. Lord Wang, who had everything in his grip, surpassed himself. He became corrupt and acted at will, bringing the country to ruin. He also often used his power to frame innocent people and even put them to death. His actions angered many people, but they were afraid of Lord Wang and dared not openly oppose his actions. So Lord Wang became even more brazen in his actions and became known as the “all-powerful” villain.
Usage
这个成语常用来形容那些仗势欺人、独断专行、不顾他人感受的人。例如，在工作中，如果领导人一手遮天，不听取员工的意见，就会导致团队士气低落，工作效率低下。
This idiom is often used to describe those who bully others, act arbitrarily, and disregard the feelings of others. For example, in the workplace, if the leader is omnipotent and does not listen to the opinions of employees, it will lead to low morale and low work efficiency.
Examples
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这个公司被少数人一手遮天，其他员工都失去了发言权。
zhe ge gong si bei shao shu ren yi shou zhe tian, qi ta yuan gong dou shi qu le fa yan quan.
The company is controlled by a few people, and other employees have lost their right to speak.
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他仗着自己有权势，一手遮天，无法无天。
ta zhang zhuo zi ji you quan shi, yi shou zhe tian, wu fa wu tian.
He takes advantage of his power, he is omnipotent and lawless.