He must play the piano every day, after that he must do piecemeal piecework.

他必须每天弹琴，之后又必须做零碎的计件。

That policy was part of a raft of changes, one of which is that the machinists are now paid on a piecework basis, rather than at an hourly rate.

这项政策是一列改革的一部分，其中之一就是机在的资是计件资，而不是按小时计酬。

After his father's death, his mother worked in an umbrella factory ten hours a day and then brought piecework home and worked until eleven o'clock at night.

母亲每天在制伞厂十几个小时， 然后带计件回家， 一直到晚上十一点。