冬冷夏热的英文表达可以是 "cold in winter and hot in summer." 来源是一种气候现象，在某些地区，冬季温度会很低，夏季温度会很高。例如：

The weather in this region is cold in winter and hot in summer.

Many people from colder climates enjoy coming to this area during the winter because the weather is cold in winter and hot in summer.

中文翻译：

这个地区的天气冬冷夏热。

许多来自寒冷气候地区的人会在冬季来这个地方旅游，因为这里冬冷夏热。