On cold nights, having a hot water bottle really helps.

We were saved from the threat of infectious diseases thanks to the vaccine.

It's very cold today, isn't it?

On cold days, warm coffee is the best.

On a cold winter night, hot cocoa is the best.

The cold has become severe.

It's difficult to go outside in this coldness.

As dawn broke, I could hear the birds singing.

Yoru is my best friend, we always spend time together.

The night is quiet and beautiful.