接下去,那位年轻的母亲提到一种挺新的代用品.Then the young mother mentioned some shockingly modern succedaneum.煤是一种可行的代用品.Coal is one viable alternative.植物油是动物油的良好代用品.Vagetable oil is a good substitute for animal oil....
They sparred for a moment, on the brink of a full fight.他们互相推搡了一会儿，眼看就要大打出手了。They had always gotten along, even when they sparred.他们一直很合得来，甚至拌嘴的时候也是如此。Over the years he sparred with his friend Jesse Jackson over politica...
Many sulphides, selenides, and tellurides have the nickel arsenide's NiAs type of structure.许多硫化物, 硒化物和碲化物具有砷化镍NiAs型的结构.The material is a semiconductor called gallium manganese arsenide.这种材料是一种叫做镓锰砷化物的东东.This paper ...