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