人们: people; men; the public; hum ...寿命: life-span; life; age; lifeti ...的: 4次方是 The fourth power of 2 i ...长短: length种种: all sorts of; all kinds of; ...因素: factor; element生命的长短: length of life取决于: agw all going well; depend on; depend upon; dependent on; hinge on; rest with忙于；取决于: to: be uto取决于, 归于: rest with sb取决于…的: successful in取决于，决定: determine取决于，依靠: depend on取决于，依赖: be dependent on/upon; depend upon; depend （up）on取决于，在于: lie with取决于；信任: depend on取决于某人: up to sb取决于你: its uto you; it's uto you -lian ross; it‘s uto you取决于条款: subject to clause属于, 取决于: remain with信赖；取决于: depend on (upon)依靠，信赖，取决于: depend on/upon依赖于，取决于: depend on; rest upon由于；取决于: due to有赖于，取决于: hang on
