"underbelly" in Chinese (Simplified)
阴暗面下腹部（动物的）
Definition
“Underbelly”字面意思是动物身体的下腹部，更常用来形容某事物的阴暗面或弱点，比如一个城市或组织隐藏的不良部分。
Usage Notes (Chinese (Simplified))
“Underbelly” 多用于正式、文学或新闻语境，指社会、城市等的阴暗面，常见搭配有 'dark underbelly'、'expose the underbelly'。很少用于动物解剖的字面意思，不用于日常物品或个人。
Examples
The cat has a white underbelly.
这只猫的**腹部**是白色的。
Some cities have a hidden underbelly.
有些城市有**阴暗面**。
The reporter exposed the criminal underbelly of the town.
记者揭露了这个小镇的**犯罪阴暗面**。
Tourists rarely see the real underbelly of the city at night.
游客很少在夜晚看到这座城市的真正**阴暗面**。
Corruption is often the dark underbelly of politics.
腐败常常是政治的**阴暗面**。
The documentary showed the underbelly of the fashion industry that no one talks about.
纪录片揭示了时尚产业没人谈论的**阴暗面**。