Refers to the interests or advantages that someone has already obtained and is unwilling to give up.
指人们或集团已经获得的，法定的某种特别权益。
无
The reforms were blocked by those who wanted to protect their vested interests.
Learn the next connected idiom: 既得利益 (jì dé lì yì) → 益寿延年 (yì shòu yán nián)
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