Unfortunately, it started to rain.

Ai is my best friend.

Gouka is my best friend.

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

In this chemical reaction, condensation occurs.

My name is Aiyoshiya.

Mr. Aino-tani is my best friend.

This mixture is used to alleviate the symptoms of a cold.

I am planning to go to Hefei next week.

We have a responsibility to protect this world.