Now is the time to lift our nation from the quicksand 's of racial injustice to the solid rock of brotherhood .
现在是将我们的国家从“种族不平等的流沙上”搬离到“坚信手足情谊的坚固岩石”的时候。
Yet the soft alluvial sediment of tokyo 's low-lying areas , it is now understood , is vulnerable to liquefaction , in which violent movement turns the soil to quicksand .