leaden
adj. 铅灰色的；铅制的；沉闷的；铅一般重的
vt. 使沉重；使懒散；使呆滞
例句
He heard the father's leaden footsteps move down the stairs.
他听见父亲步履沉重地走下楼。
《柯林斯英汉双解大词典》
The weather was at its worst; bitterly cold, with leaden skies that gave minimum visibility.
天气极其恶劣。寒风刺骨，天色晦暗，能见度极低。
Twilight came on. Snow fell from the darkening, leaden sky.
薄暮初上，阴云密布的天空飘起了雪花。
