Jiàoshòu jīntiān jiǎngshòu de nèiróng fēicháng shēnkè.
What the professor lectured on today was very profound.
Tips
usage
讲授 is more formal than 教 (jiāo, to teach) and specifically implies classroom-style instruction or lecturing. It is typical in academic contexts: 讲授课程 (to deliver a course).