It is snowing heavily. Snow will cover the ground very soon.
雪下得很大，很快地面就会被雪铺满了。
As I write this preface for Farewell Yunnan, the first exhibition this year, it is snowing heavily outside.
落笔为今年的首展《出云南记》作序时，窗外正是大雪纷飞。
It is snowing so heavily, you had better go to work by car.
下这么大雪，你还是搭车去上班吧。
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