Kibouka is my best friend.

Yuka is my best friend.

Please try asking the employee responsible.

I exercise at the gym for two hours every day.

What do you call 'time' in dialect?

I've been waiting for hours at that shop, but the meal still hasn't come out.

Have you checked the timetable for the new semester?

He is traveling around the world as an ecologist.

We must strive to protect the natural environment.

We should recycle to prevent environmental pollution.