It can not reach the respectable effect for making the music during the after-class time, what the time need is the quietness not making noise.

课间时间太短播放音乐达不到预期的效果，课间需要的是安静而不是嘈噪的声音。

youdao

A part-time job is a good way to balance costs while ensuring there is enough time left over for both academic subjects and after-class activities.

在确保有足够的时间用于学术科目和课外活动的同时，兼职是平衡成本的好方法。

youdao

After that, I didn't want to join in any class activities for a long time.

从那以后，我很长一段时间都不想参加任何班级活动。

youdao

And the students do that after their class time and their behind-the-scenes meetings and tours.

VOA: standard.2010.02.26

Fifty-five percent of the Class of 2011 had no full-time work nine months after graduating, he said, and even prestigious law schools apparently have turned to hiring their own grads to polish their placement records.

FORBES: Class-Action Firms Capitalize On Wretched Market For Law-School Grads

Viacom's main class of stock briefly hit an all-time high after the results came out.

WSJ: Media companies benefit from higher network fees

Mr. Campbell, the 14-year-old, started playing after Mr. Sokolski, his teacher at the time, introduced the game to his class in Petawawa five years ago.

WSJ: Table Hockey, on Ice Since Heyday in 1970s, Makes a Comeback