cheiro-

例句：

1. 1.The iron ore is mined from the mountains.
   铁矿石从山区开采。
2. 2.Steel is stronger than iron.
   钢比铁更坚固。
3. 3.The blacksmith was a skilled craftsman in his trade.
   这位铁匠是其工艺领域的熟练工匠。