这几天非常冷英文怎么说

在这几天非常冷的情况下，你可以用英语表示为 "It's been extremely cold these days." 或者 "The weather has been extremely cold these days."

"It's been" 是 "it has been" 的缩写形式，"it has been" 意思是 "这是/这些是"，可以用来表示过去的某段时间内的情况。"extremely" 是形容词，意思是 "极端地"，可以用来形容天气非常冷。

下面是一些例句，希望对你有帮助：

It's been extremely cold in New York this week. (这周纽约天气非常冷。)
The weather has been extremely cold lately. (最近天气非常冷。)
I can't bepeve how cold it's been these past few days. (我简直不敢相信这几天这么冷。)

希望我的回答能帮到你！