Is spring cold and steep an idiom? What does this mean?

There is a chill in the air in spring.

Pronunciation: CHN hán Liào qiào

Interpretation: cold: slightly cold. Describe the cold in early spring.

Songshi Puji's "Five Lights Meeting Yuan" Volume 19: "The spring is chilly and the young people freeze to death."

Not steep, but steep.

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The original meaning of "chilly spring" comes from Song Shi Puji's "Five Lantern Festival" Volume 19: "chilly spring, freezing young people to death."

The annual minimum temperature in China is 65438+ in February and 65438+ in1October. If the temperature in February is as cold as that in 65438+February and 65438+1October, even colder than the coldest time, it is in line with "the spring is chilly, and Rome is not built in a day."