travel up and down 翻译成中文.

travel up and down 翻译成中文. travel up and up and down翻译 up and down? up and down 翻译 jump up and down jumped up and down up and down什么意思 up and down翻译汉语? 是ups and downs还是up and down还是up and downs还是ups and down up and down是什么词性的词组 what goes up and never goes down? We go up and down the building___elevator 用look up and down造句. jump up and down的意思 he goes up and down翻译 用up and down 造句如题 UP AND DOWN用中文怎么说