劳务
service (work done for money); services (as in 'goods and services')
劳务人员
contract workers (sent abroad)
老吾老,以及人之老
to honor old people as we do our own aged parents
老吾老,以及人之老,幼吾幼,以及人之幼
to honor old people as we do our own aged parents, and care for other's children as one's own
老乌恰
same as 烏魯克恰提|乌鲁克恰提 in Xinjiang
不劳无获
no pain, no gain (idiom)
徒劳无功
to work to no avail (idiom)
徒劳无益
futile endeavor (idiom)