它不包括一个图形化用户界面(GUI)，以及作为一个RAM磁盘默认引导；因此当您拔掉电源时您所作的改变都将丢失。

It does not contain a graphical user interface (GUI) and boots by default as a RAM disk; thus any changes you make are lost when you unplug.

youdao

当你打开一个文件，它不断地保存在内存中，但对于光盘，硬盘，当你断开电源的时候，数据不会丢失。

When you're working on a file, it's saving constantly to RAM but also hopefully to disc, the hard disk so you don't actually lose it if the power goes off.

youdao

计算机内存有一个问题，当关闭电源后，内存中的数据将丢失。

A problem with computer memory is that when the power is turned off, or the machine is rebooted, data in memory is lost.

youdao

When you're working on a file, it's saving constantly to RAM but also hopefully to disc, the hard disk so you don't actually lose it if the power goes off.

当你打开一个文件，它不断地保存在内存中,但对于光盘，硬盘,当你断开电源的时候，数据不会丢失。

哈佛公开课 - 计算机科学课程节选