0 to have good practical skills and knowledge in a particular activity or subject
中文繁体
精通業務,在行…
中文简体
精通业务,懂行…
Polski
znać się na rzeczy…
Türk dili
işini iyi bilmek, konusuna hâkim olmak…
русский язык
знать свое дело…
NYA ORD
European
May 10, 2021
DAGENS ORD
Shimmer
know your stuff