He often thinks about problems from a humanitarian perspective.

His company is facing the risk of a hostile takeover.

He is spending a lot of time on experimental research.

That plan is too impractical, it's difficult to implement.

I'm troubled by his unproductive attitude.

He was affected by secondary effects.

The North American Aerospace Defense Command is responsible for the aerospace defense of North America.

In behavioral sciences, the use of metatools plays a crucial role.

It is important to distance yourself from antisocial forces.

Japan's exclusive economic zone plays a crucial role in the management and utilization of marine resources.