Euphemism
委婉语
An inoffensive expression used in place of a blunt one that is felt to be disagreeable or embarrassing. Euphemisms are used frequently with reference to such subjects as religion, death, bodily functions, and sex.
委婉语指为了避免令人不悦或尴尬而采用的含蓄婉转的表达,常用于涉及性、宗教、死亡、身体功能等的话题。