As to what caused these cold snaps, the ever-popular suspects are ash and dust kicked up by either astronomical impacts or massive volcanism.

至于气温突降的原因，最具代表性的观点认为是由于天体冲撞或大规模火山喷发激起的火山灰和尘土。

youdao

In the cold vacuum of space, radiation from massive stars carves away at cold molecular clouds, creating bizarre, fantasy-like structures.

在太空的寒冷真空之中，来自大质量恒星的辐射如同光剑一般切开了冰冷的分子云，创造出奇异梦幻的雕塑。

youdao

A fairly strong cold wave will hit most of China within 3 days, bringing massive snow and rains, the National Meteorological Center reported.

据中央气象台报道，未来3天，较强冷空气将影响中国大部地区，带来大范围雨雪天气。

youdao

Massive investment in roads and cold storages could radically change the economics of fruit-growing.

ECONOMIST: From the archive

One big difference between Russia and most other big energy-producers is that Russia, an enormous, cold country, is a massive consumer too.

ECONOMIST: Russian gas and Europe

Antarctica is surrounded by a very cold and turbulent ocean, whose massive thermal capacity (compared to land) drastically reduces warming, compared to what we see in our hemisphere.

FORBES: Is Global Warming A Bipolar Disorder?