The students often go skiing during winter vacation.

学生们在寒假期间经常去滑雪。

I had a rich and amusive winter vacation.I got a lot of knowledge，and after taking part in some social activities, I gained practice in all aspects.

这个寒假我过充实而愉快，我获多知识，并且积极参加社会活，使自己到全方位的锻炼。