观摩课的英文：
criticism lesson
n. 批评，指责；评论，评论文章；考证
- a critical juncture; a critical moment
关头 - Their criticism was not negative.
他们的批评并不是负面的。 - Criticism of Germany, by comparison, is muted.
相比之下，德国的指责算是柔和的了。 - You are free to criticize my work.
你可以随意批评我的工作。 - Please criticize my painting.
请评论我这幅画。
n. 功课；课业；一节课，一课时；课程；教训
- This lesson is thoroughly motivated.
这节课非常生动有趣。 - That accident taught them a lesson.
那次事故给了他们一个教训。 - I missed a lesson yesterday.
昨天我误了一节课。 - This lesson pertains to marine animals.
这一课讲海洋动物。 - He lessoned us in the art of persuasion.
他将说服人的技巧教给我们。