专业

zhuān yè specialty; specialized field; main field of study (at university); major; CL:門|门[men2],個|个[ge4]; professional

签名

qiān míng to sign (one's name with a pen etc); to autograph; signature

服务

fú wù to serve; service; CL:項|项[xiang4]

唯一

wéi yī only; sole

TG:guluiosmly