冷锋是一种在冬季常见的锋，在锋线后为冷空气团。此视频会详细介绍什么是冷锋和不同的冷锋过境时所产生的影响。

A cold front is a front common in winter with cold air masses behind it.This video will describe in detail what a cold front is and the effects of different cold fronts as they cross the border.