wanna= want to 想要，想做

coulda= could have 本来可能

gotta= have got to 不得不

at= @

and= &

though= tho

too= 2

for= 4

before= b4

because= coz

see= c

going to= gonna

pictures= pics/pix

please= plz

are= r

girlfriend= g/f

yes= yep

thanks= thanx

IMP= important

ASAP= as soon as possible

DIY= Do It Yourself

FYI= For Your Information

RSVP= Répondez S'il Vous Plaît

VIP= Very Important Person

FAQ= Frequently Asked Questions

FYC= For Your Convenience

ETA= Estimated Time of Arrival

GMO= Genetically Modified Organism

LGBT= Lesbian, Gay, Bisexual, Transgender

CEO= Chief Executive Officer

31. NASA= National Aeronautics and Space Administration

32. CCTV= Closed-circuit Television

33. HIV= Human Immunodeficiency Virus

这些缩略词在日常交流和工作中非常常见，掌握它们可以提高沟通效率。