WIP
Work In Progress 开发中（work in progress, do not merge yet）
PTAL
Please Take A Look 帮我看下（请别人 review 自己的 PR）
LGTM
Looks Good To Me 看起来不错, 没有问题（别人 review 完 PR 之后）
RFC
Request For Comments 请求评论
i.e. I think this is a good idea, lets discuss
AFAIK / AFAICT
As Far As I Know / Can Tell 据我所知
IMHO
In My Humble Opinion 以我的拙见（多用于邮件和网络）
FYI
For your information 供你参考
CC
Carbon Copy 抄送（邮件）
AFK
Away From the Keyboard 稍后回来
ACK
ACKnowledgement 同意
i.e. agreed/accepted change
NACK / NAK
Negative ACKnowledgement 不同意
i.e. disagree with change and/or concept
QA
Quality and Assurance 品质保证
