Can ironworker control the quality of the iron they make then?

那时炼铁工人能够控制他们所炼的铁的质量吗？

youdao

Could ironworker control the quality of the iron they made then?

那时炼铁工人能够控制他们所炼的铁的质量吗？

youdao

Could ironworker control the quality of the iron they made then?

那时炼铁工人能够控制他们所炼的铁的质量吗？

youdao