a piece of work
US /ə piːs əv wɜrk/
UK /ə piːs əv wɜrk/

1.
麻烦人物, 怪人, 难缠的人
a person who is difficult, unpleasant, or eccentric
:
•
He's really a piece of work, always causing trouble.
他真是个麻烦人物,总是惹麻烦。
•
I can't believe she did that; she's quite a piece of work.
我不敢相信她做了那种事;她真是个怪人。