Gentle slope in the dust-pan like sag has geological condition for the formation of petroleum reservoirs, and is the favorable place for the accumulation of oil and gas.

She was in the kitchen sweeping crumbs into a dust pan.

The window of the sun, sprinkle dust on the floor in the afloat, floating into the lonely, in the bright afternoon, the pan into a silent sigh choking in the throat, so heart sore.