向上向下的英文怎么说

"Up and down" 在英语中表示 "向上向下"。这是一个基本词汇，没有特殊的来源。

例句：

The bird flew up and down in the sky. (鸟儿在天空中飞来飞去。)
The stock market has been going up and down lately. (最近股市一直起起落落。)
She looked up and down the street for her lost dog. (她在街上上下寻找丢失的狗。)