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

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

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 very cold today, isn't it?

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.