冷气团

fēi jī chōng chū le lěng qì tuán zhōng yú tuō xiǎn le

飞机冲出了冷气团,终于脱险了。

The plane flew out of the cold air mass and was out of danger at last.

lěng ér mì dù dà de lěng qì tuán pò shǐ nuǎn qì tuán shàng shēng jiù hǎo sì chā rù de yī méi xiē zi

冷而密度大的冷气团迫使暖气团上升，就好似插入的一枚楔子。

The cold, dense air lifts the warm air like a wedge.

lǒng zhào zhe rì běn liè dǎo de lěng qì tuán

笼罩着日本列岛的冷气团

a cold air mass which blanketed the Japanese archipelago