Oil is an important element of the world economy.

She played the piano with her fingertips.

This lamp used to light up with whale oil in the past.

I studied in the library with my schoolmate.

This sudoite is something I inherited from my grandfather.

My mother attends a tea ceremony class every week.

Miyu is my best friend.

This machine operates using a special oil solution.

He is trying to get a promotion by flattering his boss.

I always practice kyudo on weekends.