因为冬天很冷用英语怎么说

"It's very cold in the winter" 是表达冬天很冷的常用英语表达。
"It's" 是"it is"的缩写形式，"very" 是形容词，表示程度非常高，"cold" 是形容词，表示冷。
例句:
"It's very cold in New York City in the winter." (纽约市冬天非常冷)
"I can't stand the cold in the winter." (我不能忍受冬天的寒冷)
"I need a warm coat for the cold winter days." (我需要一件暖和的外套应对寒冷的冬天)