He is trying to hide his embarrassing past.

He recognizes the importance of oral history.

He interprets world events from a historicism perspective.

I often use vegetable oil for cooking.

Mineral oil is often used in the manufacture of cosmetics and pharmaceuticals.

The nucleus is the central part of a syllable in phonetics.

This dish uses olive oil, which has been used since ancient times.

I use hempseed oil for salad dressing.

This country maintains its sovereignty.

I always add chili oil to my ramen.