Vitamin B1 plays an important role in energy production.

I don't know a thing about him.

He went to Tokyo to visit a friend.

The leading edge of this airplane is very sharp.

Mr. Maenomae is my best friend.

Mr. Maesato is my best friend.

The recipe was published in the previous issue of the magazine.

He studied all night on the eve of the exam.

Foreplay is a part of expressing love and an important element in deepening intimacy with your partner.

An abnormality was found in the preoperative examination.