winter grade的意思|示意

A university in Sichuan Province provoked protest among students after assigning them to advertise their colleges on social media over their winter holiday or face a failing grade.

四川省某大学要求学生在寒假期间在社交媒体上对学院进行推广，否则很可能面临挂科的危险。该做法引起了众多学生的抗议。

In addition, I also want to do some exercises, in the winter, can be fully prepared for the next semester, because I know the sixth grade for what I mean.

另外，我还想在寒假能多做一些练习题，这样，可以为下一个学期做好充分的准备，因为我知道六年级对于我意味着什么。

Could you please help them practice singing it? After the song, Grade 2.2 did an extension writing activity about winter.

您能帮他们练习吗？学完歌曲，2年2班的同学还做了有关冬天的拓展练习。