Living things cannot live without air.中为什么用WITHOUT,而不用HAVE N

N_______ living things can live without air. people cannot ( ) without air and water.(live) all living things,_____,couldn't live without air and water all the living things _,couldn't live without air or water We can't live without air and water.为什么用and不用or啊? cannot live without you I need you just like I cannot live without air. 1）We cannot live without air or ------------. Some living things can live without water.（翻译中文） None of us can live without air. 为什么不能写None of us can live n nothing can live without water and air这里为什么不用or Living things cannot live _______water