He is deeply studying about the 'U' in Buddhism.

Yu is my best friend.

This insect belongs to the subfamily of stink bugs.

He is an expert in entomology, especially knowledgeable about butterflies.

Insects are an important part of the natural world.

He is world-famous as an entomologist.

He is considered a second-rate student at school.

The subtropical climate is humid and hot all year round.

He is recognized as a runner-up champion.

A is my best friend.