Jack: oh, I see, no wonder my grandfathers hair is all white.

杰克：哦，我明白了，难怪爷爷的头发全白了。

youdao

Jack: oh, I see, no wonder my grandfathers hair is all white.

杰克：哦，我明白了，难怪爷爷的头发全白了。

youdao