ecd estimated completion date (预计完成时间)
ooo out of office (不上班)
I donno I don't know (我不知道)
brb be right back （马上回来）
imho In my humble opinion (在我看来， 推荐 - 建议使用在说自己建议的时候）
imo in my opinion （在我看来，语句比上面的强硬一些）
thx thanks （谢谢）
plz please （请）
biz business
sth something
nth nothing
howz how is
np no problem
oic oh, I see
oicu oh, i see you
ftf / f2f face to face
fyi for your information
gl good luck
asap as soon as possible
atst at the same time
btw by the way
