是ups and downs还是up and down还是up and downs还是ups and down

是ups and downs还是up and down还是up and downs还是ups and down
是ups and downs还是up and down还是up and downs还是ups and down

是ups and downs还是up and down还是up and downs还是ups and down
如果你说的是人生的起起伏伏的话 一定是ups and downs

是Up and down,
没有Ups和downs这种说法

up and down

第二个正确

up and down 意思是上上下下

第二个

up and down, 这动词短语吧，没有复数形式