The courses include elementary, intermediate and advanced Chinese, conversational Chinese, business Chinese and children class for a total number of 21 classes.

孔子学院开设有初级、中级、高级、提高、商务、儿童班等各种汉语培训课程，共有21个班级。

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As Anna waited to climb on stage for her class' performance, she said the day was about listening to children.

VOA: standard.2009.11.22

When we started with the entire class, I showed the children how to bind the book by hand.

这门课最开始的时候，我向孩子们展示了如何把书用绳子缝起来。

麻省理工公开课 - 媒体、教育、市场课程节选

Children get diseases from a class of viruses called rotaviruses, for which we have no vaccine, and- and so no way to protect them.

儿童因轮状病毒而生病,而我们没有针对这种病毒的疫苗,所以,所以我们没有办法保护儿童

耶鲁公开课 - 生物医学工程探索课程节选

To reverse Brazil's dramatic dropout rate, the government pays parents to keep their children in class.

NPR: Brazil Votes in Runoff to Choose President

Some are spending money on taxi rides to school, while others are carving out time from busy schedules to drive children to class or spend the day at home with them.

WSJ: Bus Strike Puts Parents On the Spot

And he said a "shockingly low" number of children from poor backgrounds were getting into grammar schools, while middle class children were being coached to pass the exam.

BBC: NEWS | UK | UK Politics | Tories 'out of touch' on grammars