gōng fu
period of time (may be months, or mere seconds)
spare time
skill
labor
effort
xià gōng fu
to put in time and energy
to concentrate one's efforts
gōng fu chá
very concentrated type of tea consumed in Chaozhou, Fujian and Taiwan
variant of 功夫茶[gong1 fu5 cha2]
tà pò tiě xié wú mì chù , dé lái quán bù fèi gōng fu
to travel far and wide looking for sth, only to find it easily
zuò gōng fu
to practice (work skills)
zhuā gōng fu
to maximize one's time
to catch some time out
to find enough time
(also 抓功夫)