lecture

n./v. /ˈlek.tʃɚ/ B1

讲座；讲课

A formal talk given to students to teach a subject.

仙境例句

The old crab gave a long lecture on Laughing, and nobody laughed even once.

老螃蟹讲了一堂很长的“笑”课，可从头到尾没有一个人笑。