在欧洲商场上每天处于上与下的不断反复之中，所有的眼睛都紧盯着华尔街。

It was an up and down and up again day on the European markets, with all eyes looking toward Wall Street.

youdao

它是上四分位数与下四分位数之间的差异。

It is the difference between the upper and lower quartiles.

youdao

绑在他手腕上的遥控器提供多种行动模式：“站”，“坐”，“走”，“上”和“下”(最后两种模式与爬楼梯相关)。

A remote control strapped to one of his wrists offers several modes of action: "stand", "sit", "walk", "ascend 'and" descend "(the last two being pertinent to climbing and coming down staircases)."

youdao

Some are going to reform and some are going to reform with the gene in, and some probably aren't going to reseal at all under the conditions that I've used.

有些质粒会自己合上,有些质粒会与DNA片段重组并合上,还有的在我提供的条件下,也根本合不上

耶鲁公开课 - 生物医学工程探索课程节选