double standard

/ˌdʌb.əl ˈstæn.dəd/

a rule or standard of good behaviour that, unfairly, some people are expected to follow or achieve but other people are not

良好行为的规则或标准，有些人被要求遵守或达到，但有些人却没有;双重标准

Officials must avoid double standards, or different types of access for average people and the wealthy.

官员必须避免双重标准，或是区别对待普通人和富人。

All right, buster, this is such a ridiculous double standard.

你的双重标准简直荒谬透顶。