euphemism

The military often uses the euphemism 'collateral damage' to refer to the accidental killing of civilians.

(Chinese) 军方经常使用委婉语“附带损伤”来指代误杀平民的行为。

'Senior citizen' is a common euphemism for an old person, used to sound more respectful.

(Chinese) “资深公民”是老人的常用委婉语，听起来更显尊重。