预期寿命 yùqīshòumìng life expectancy Origin Definitions Defs Strokes Stroke Words Sentences Sents 预期 預期 yùqī nounverb to expect; expected to expect or anticipate in advance; to be expected寿命 壽命 shòumìng noun lifespan life span; life expectancy; the length of time that a person, animal, or plant lives