How do you use pores in a sentence?

To begin with, "pore" has two meanings:

First is to gaze or study concentratedly, or ponder deeply.

Second is a small opening, as the openings in the skin.

Obviously you must be asking about the first one.

Sentence: "A student who is studying for an exam pores over his textbook to make sure he understands the course material."

Sentence: "The teacher pores over his book to prepare for the next day's lesson."