Stroke order
Sentence examples
英语是课堂常用语
yīngyǔ shì kètáng cháng yòngyǔ
English is used mostly in the class
良好的课堂行为
liánghǎode kètáng xíngwéi
good classroom behavior
课堂教学
kètáng jiàoxué
classroom teaching
课堂和实验室
kètáng hé shíyànshì
classrooms and laboratories