每次你不听话，我就会有一根头发变灰白的。

Every bad action of yours will turn one of my hairs grey!

youdao

是的，他们是我们的死亡提醒人——事实上，我知道我头发变灰白色的速度将会远比我没有孩子时快，特别是现在，我有一个十几岁大的家伙。

And yes, they are reminders of our mortality — in fact, I know I'm going gray a lot faster than I would have had I been childless, especially now that I have a teenager.

youdao

有时候，我们悄无声息地变老，直到你看到我们灰白的胡子和白内障般恍惚的眼睛才知道。

Sometimes, we age so slowly before your eyes that you may not even seem to know until the very end, when we look at you with grizzled muzzles and cataract clouded eyes.

youdao