This two-parameter CD command has lots of USES: swapping between similar directory paths where the only difference is a database instance name, a branch name, or maybe a date.

这个两个参数cd命令有很多用途：在类似的路径之间切换，这些路径的惟一区别是一个数据库实例名、一个分支名、或者也许是一个日期。

youdao

Dates and Times provides a broad spectrum of date manipulation functionality, including calculating the difference between two dates and retrieving the local system current date and time.

Dates and Times提供了大量的日期操作功能，包括计算两个日期之间的差，以及检索本地系统的当前日期和时间。

youdao

There is a difference between getting a bit nervous before a meetingat work or a date and having a big panic attack and feeling like youcan’t breathe or are about to faint.

之间存在着变得有点之前meetingat工作或日期并具有很大的恐慌发作和呼吸的感觉像youcan't或即将晕倒紧张的差别。

youdao

Despite much attention given to saunas with heaters emitting at specific electromagnetic frequencies, research to date suggests that there is no difference in toxicant excretion rates between perspiration that occurs through infrared sauna, dry or wet regular saunas, or exercise.

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