unpaid labor的意思|示意

Such unpaid labor constituted the rent they paid to serf owners.

这些无偿的劳动，就是缴纳给农奴主的劳役地租。

The benefit unpaid labor offers to a business is pretty clear, but it can also give employees needed experience, a reference letter or even a self-esteem boost in a depressing economy.

零薪员工为企业带来的好处是不言而喻的。不过与此同时，零薪酬就业也能为员工带来一些好处，比如它能带来许多员工亟需的经验以及推荐信，甚至能在经济低迷的当下，为员工的自尊心打上一剂强心针。

The disproportionate wealth that most whites enjoy today was first constructed from centuries of unpaid black labor.

今天大多数白人享有的不成比例的财富，最初是由几个世纪以来无偿的黑人劳工创造出来的。