lt's very cold outside!lt's often snows.

lt's very cold outside!lt's often snows.
lt's very cold outside!lt's often snows.

lt's very cold outside!lt's often snows.
外面很冷,经常下雪

外面很冷！经常下雪。

外面很冷，经常下雪。

因为经常下雪，所以外面很冷！