ASAP

ASAP：As Soon As Possible（尽快）
例句：Please send me the updated price list ASAP so we can proceed.

TBD：To Be Decided（有待决定）
例句：Payment terms are still TBD.

N/A：Not Applicable（不适用）
例句：This option is N/A for sea freight.

EOD：End of Day（当天结束前）
例句：Please reply by EOD today.

COB：Close of Business（下班前）
例句：We need the quotation by COB Friday.

EOW：End of Week（本周结束前）
例句：Please send the draft PI by EOW.

PFA：Please Find Attached（请查收附件）
例句：PFA our updated catalog.

FYI：For Your Information（供你参考）
例句：Attached is our company profile, FYI.

Re：Regarding / Reply（关于…）
例句：Re: Your inquiry about pet toys.

ETA：Estimated Time of Arrival（预计到达时间）
例句：The goods are scheduled to ship tomorrow with an ETA of Sept 15.

OEM：Original Equipment Manufacturer（代工生产）
例句：We can provide OEM service with your logo.

I’ve learned that, before I only know about ASAP and ETA