cast-iron boot

例句：

1. 1. The farmer wore a cast-iron boot to protect his feet from the cold weather.
   农民穿着铁底靴来保护他的脚免受寒冷天气的影响。
2. 2.He put on his cast-iron boot and went outside to tend to the horses.
   他穿上了铁底靴，走出门去照顾马匹。
3. 3. The old man had a cast-iron boot made for him by his grandson.
   老人的孙子为他做了一双铁底靴。