He is my online friend, and we play online games every day.

This bacteria can be killed by heat.

This food has been heat-treated to kill bacteria.

He prayed fervently for his sick friend.

He prayed earnestly for his sick mother.

Walking on the hot sand is very difficult.

Sooner or later, he will come to know the truth.

Sooner or later, he will come to know the truth.

He was working until late at night.

The shape of this root is very unique, isn't it?