Definition
这是一个四字成语（固定表达），字面意思是“天空寒冷，大地冻结”，用来形容极其寒冷、冰天雪地的天气。它强调环境的严酷低温，常用于描绘冬季或极寒地区的场景。使用时作为一个整体，不能拆分或插入其他成分。
f.e.
bitterly coldfreezing (weather or environment)
Examples
- 天寒地冻，。Běifāng dōngtiān jīngcháng tiān hán dì dòng, chūmén yào chuān hòu yīfu.In the north, it's often bitterly cold in winter; you need to wear thick clothes when going out.
- ，。Zài zhè tiān hán dì dòng de yè lǐ, tā hái zài wàimiàn gōngzuò.On this freezing night, he is still working outside.
- 天寒地冻，。Wàimiàn tiān hán dì dòng, wǒmen zuì hǎo dāi zài wū lǐ.It's freezing outside; we'd better stay indoors.
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