Up to the day of her death at seventy-four it was still that vigorous iron-gray, like the hair of an active man.
直到她七十四岁去世之日为止，还是保持着那旺盛的铁灰色，像是一个活跃的男子的头发。
2
He just stood stiff in the center of the rug, in his hat, the shaggy iron-Gray brows twitching slightly above the pebble-colored eyes.
他只是直挺挺地站在地毯的中央，头上仍戴着帽子，卵石色眼睛上方铁灰色的浓眉微微抽动着。
3
Some believe that the hardened grayiron used to make the components simply "fatigues" with age-as metal parts that go through millions of stress reversals eventually do.