Ai is my best friend.

Gouka is my best friend.

The result of this synthesis provides a new perspective on our research.

My name is Aiyoshiya.

Mr. Aino-tani is my best friend.

This juice contains preservatives.

Antibiotics don't work for colds, so rest is the best.

I use bleach to wash my white shirts.

I received treatment using an anesthetic at the dentist.

I decided to take a painkiller because I have a severe headache.