天气一天一天的变冷 The days of weather cooled ; Weather day cooling

今天一点也不冷 It's not cold today ; Colder today is not ; Today it is not cold

一天比一天冷 it's getting colder every single day ; it s getting colder every single day ; day

这是冬天里寒冷的一天 It's a cold winter day

冬天的一个干冷的早晨 a crisp winter morning

今天和昨天一样冷 Today as yesterday cold ; As cold today and yesterday

每天一个冷知识 a cold knowledge every day

那儿的冬天一向不太冷 it is never excessively cold in winter there

天气一时冷一时热 the weather is now cold now hot