Someone would have to clean the snow off the sidewalk, either him or his father.

VOA: special.2009.03.07

This can help a worker keep his nose clean or stay out of trouble.

VOA: special.2009.09.13

His clothes were too small for him, but they were clean.

VOA: special.2009.04.04

"It is his anticipation that the Afghans are going to come to expect more from their government,expect clean and competent leadership from their government,"

VOA: standard.2009.11.12

The Maldivian leader wants countries like his to embrace green technology, switch to clean energy, and show the way to those who are opposed to change.

VOA: standard.2009.11.09

The Indian leader announced Monday that the United States and India would sign a memorandum of understanding during his visit designed to improve cooperation on energy security, clean energy and climate change.

VOA: standard.2009.11.25

A White House spokesman says the president will talk to the nation about what his administration has done to help clean up the oil, limit the environmental damage and direct BP to stop the leak.

VOA: standard.2010.06.15

Earlier Friday, BP's incoming CEO Bob Dudley, said it is time to scale down the vast operation to clean up the Gulf of Mexico oil spill, but he stressed his company's commitment to fully restore the environment.

VOA: standard.2010.07.31