My younger brother still sometimes wets the bed.

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.

He learned a big lesson from that failure.

He taught me an important lesson.

The procedure for the homestead tax is difficult.