Clear the river
浊泾清渭───Clear the river
It was covered with tall trees and the swamp was a crystal-clear river.───那里覆盖着高大的树木，沼泽是一条清澈的河流。
The river was nearby, clear and free of all pollution, and petrol was easy to obtain, in unlimited quantities, from the filling stations and parked cars.───河就在附近，清澈见底，没有丝毫污染，汽油很容易就能从加油站和停放着的汽车弄到，应有尽有。
Developing the Yangtze River Economic Belt is a systematic project which calls for a clear road map and timetable.───发展长江经济带是一项系统工程，需要有明确的路线图和时间表。
trees every where . The sky is always clear The river is blue and looks beautiful at sunset .───树在任何地方。天空总是蓝色的河流是蓝色的还有漂亮的日落
I would make the sky bright, the air clear, the river clean.───我会让天空变的明朗，空气变得清新，河水变得清澈。
We have to take measures to clean (clear) the river water thoroughly.───我们应该采取措施把河水彻底清理干净。