He was disheartened because he failed the exam.

He was on the verge of going crazy from work stress.

His attitude is causing unhappy feelings to me.

She is the type to pay attention to details.

Migi is my best friend.

The engine is designed to scavenge.

I confirmed that the engine's scavenging system is functioning properly.

There is a strange atmosphere in this room.

I'm not in the mood to work.

His actions are always full of manly traits.