都是拉丁语的简写

 

i.e. that is      “My friend david is a vegan, i.e. he only eats ...”

e.g. for example

etc.       and other similar things. It is used to avoid giving a complete list

i.e. e.g. etc._后端

 

 (linux 系统中就有一个叫etc的目录 就是用来存一些零零碎碎的文件)

i.e. e.g. etc._linux_02