deuton

例句：

1. 1. The car was made of steel.
   这辆车是用钢做的。
2. 2. He is an expert inthe field of iron and steel.
   他是钢铁领域的专家。
3. 3. The ironmonger had a lotof tools for repairing things.
   铁匠有很多修理工具。