运货车沿着路艰难地向上移动.A wagon trundled up the road.尽管比尔被警察监禁过, 但他现在驾驶运货车,用正当的手段挣钱.Although Bill has been in trouble with the police, he earns an honest penny these days by driving a van.面包商用一辆运货车给我们送面包.The baker uses a van to br...
添加的甲基汞的回收率据报到达90%左右.The recovery of added methylmercury was reported to be approximately 90 %.通过相同的和添加的作用, 多基因可以对总的变异起重大的影响.Through similar and supplementary action, polygenes can have important effects on total variabil...