课时

He fell asleep during the lesson.

他在上课时睡着了。

I made the zip gun in class out of a toy airplane launcher.

我在上课时用玩具飞机发射器改制了这把枪。

Topsy had an uncommon verbal memory, and committed with a fluency that greatly encouraged her instructress.

托普西对文字的记忆力非常强，上课时对答如流，使她的教师感到十舞。

The teaching quality of urology clinical noviceship was restricted by strained teaching time,relative shortage of teaching resources and the lack of patients cooperation.

泌尿外科的临床见习受到课时少而内容多、教学资源相对短缺、患者配合教学的意识不足等因素的影响。