灰铁的英文：
gray iron
adj. 灰色的；阴沉的，阴郁的；无特色的
n. 灰色，暗淡
v. 变灰色，使 ... 变灰色
- He dressed in gray.
他穿灰色衣服。 - It was a gray, chilly day.
那天天色阴沉，凉气逼人。 - Gray hair is a mark of age.
灰白头发是老年人的特征。 - This monk wears a gray frock.
这个和尚穿着灰色的僧袍。 - Sorrow has grayed his head.
忧伤使他头发变得灰白。
n. 铁；铁质；熨斗；刚强；毅力；铁头球杆
v. 烫平，熨
adj. 铁的，刚强的
- The hot iron seared the trousers.
热熨斗烫焦了长裤。 - Iron oxide red pigments
GB/T1863-1989氧化铁红颜料 - Strike while the iron is hot.
打铁趁热。 - Iron corrode easily.
铁易受腐蚀。 - The party has iron discipline!
党有铁的纪律！
