'It's much colder than yesterday,' he remarked casually.

“今天比昨天冷多了。”他漫不经心地说。

《牛津词典》

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Frost's Descent, the 18th solar term of the year, is the last solar term of autumn, during which time the weather becomes much colder than before and frost begins to appear.

霜降是一年中的第18个节气，是秋天的最后一个节气，在此期间，天气比之前变得更凉，开始出现霜降。

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The Earth has been much hotter and much colder than it is now.

BBC: Looking for the greenhouse signal

International astronomers suspect it is a bare, icy, rocky world, much colder than the Earth and 13 times its mass.

BBC: NEWS | Science/Nature | Planet hunters find 'super-Earth'

Winds have been strong, in some cases blowing more than 70 kph (43 mph), which makes the wind chill much colder than the air temperature.

CNN: STORY HIGHLIGHTS