Poring

I left Jeremy poring over his notes for his first accountancy exam tomorrow.

Someday, dear language learner, you must stop poring over IPA charts and start listening to people.

She's always poring over a book.

After poring over 56 years of data, the researchers found that a magnetic map is responsible for providing sockeye salmon with their keen sense of direction which guides them home, even when they’ve been away at sea for years.

During my porings over a volume of the former for 1794, I fell upon a paragraph which caused such a sudden perturbation in my whole appearance, as to excite the curiosity of the surgeon[…]