up and down_up and down的解释_up and down的意思_up and down的翻译_up and down的发音_up and down怎么念_up and down的例句_酷词

基本词义
单词例句

up and down

adv.上下地,到处,前前后后,来来往往

难易程度:

up and down为短语/超纲词汇

近义词, 同义词

to and fro up and down backwards and forwards back and forth up and down seesaw zigzag in and out from side to sideto and fro up and down backwards and forwards back and forth up and down seesaw zigzag in and out from side to side

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