表达 “dead of winter” 指 “隆冬时节，冬天最寒冷的时期”，相当于汉语里的 “寒冬腊月”。它通常被用来描述像大雪或重霜这样的阴冷天气。“Dead of winter” 多出现于文学作品中，但在口语中也时常被使用。

• I'm not going out there. It's the dead of winter.
  我不出去。这寒冬腊月的，太冷了。
• It was the dead of winter, and the ground was covered in thick frost, and icicles were hanging from the trees.
  隆冬时节，积霜遍地，冰柱垂枝。
• You're travelling in the dead of winter? Make sure to drive safely as the roads are likely to be icy.
  你要在冬天最冷的时候旅行？道路可能会结冰，所以一定要注意安全驾驶。