ferractor

例句：

1. 1. He is a ferractor who specializes in metalworking.
   他是一名专门从事金属加工的铁匠。
2. 2. The new policy will be a great ferractor for the country's development.
   这项新政策将极大地促进国家的发展。
3. 3. The railway was built by a group of ferractors who worked tirelessly for years.
   这条铁路是由一群铁轨铺设者辛勤工作了多年的。