Olive oil is very good for health.

Dipterocarpus is a large valuable timber tree.

Although it's raining, I still go out to play.

Rapeseed oil is very good for health.

Rapeseed is an important crop in agriculture.

I often use sesame oil to stir-fry vegetables.

I like cooking with oyster sauce.

Rose essential oil smells very fragrant.

I like to eat rice with soy sauce.

Petroleum is a valuable resource for many countries around the world.