It's been bitterly cold here in Moscow.

在莫斯科这里，天气一直极其寒冷。

Outside it was bitterly cold.

外面非常寒冷。

It was bitterly cold.

天气冷得刺骨。

Tamara would sally out on bitterly cold nights.

塔玛拉会在寒冷透骨的夜晚出发。

It was bitterly cold now and the ground was frozen hard.

现在天气冷极了，地面冻硬了。