Now they are trying to clean the water to make it clear again.

"We were trying to clean the roads and looking up at the same time to make sure nothing fell on top of us."

The men tried to clean their boots before they came in here, but it just wasn't possible to get all of the smell out.

Trying to clean the dust off the rock may damage it even more.

They'd fall apart if we tried to clean them now.

"I've been trying to clean the air for 20 years," said one board member.

Over the weekend, a few young people were trying to clean the place up.

This is not the kind of thing that one expects when trying to clean the city.

He shouldn't have tried to clean the blur off his vision.

Whoever tried to clean it didn't do a good job.