labor of love  一生钟爱的事业

she is in labor. 她在生孩子

the fruit of labor  劳动的果实

labour  英联邦  labor   美国

How is the labor? 生孩子怎么样？ early labor  早产

manual/physical labor  体力劳动

intellectual labor   脑力劳动

labor is glorious

I am laboring away at work.  工作累成狗

the work is taxing。 累

working class 劳动人民