He turned a piece of metal with a Turner. At each turn, a part of the metal turned turned into scrap.

他用车床车一块金属。每车一圈，就有一圈被车的部分金属变成一圈废料。

youdao

He turned a piece of metal with a Turner. At each turn, a part of the metal turned turned into scrap.

他用车床车一块金属。每车一圈，就有一圈被车的部分金属变成一圈废料。

youdao