This paper reports the main results of research and development preparation of 0.2 % celangulins emulsifiable concentrate.简要报道植物杀虫剂0.2%苦皮藤素乳油研究与开发的主要结果.He slept badly at night and couldn't concentrate in class at da...
They will concentrate on teaching the basics of reading, writing and arithmetic.他们将集中教授阅读、写作和算术基础知识。We must concentrate our energies on treating addiction first.我们必须首先集中精力治疗毒瘾。A term in prison will concentrate his mind w...
Bottles and cans were hurled on the terraces by the mob.暴徒向看台扔瓶子和罐子。The people here grow rice on terraces.此地的人们在梯田里种植水稻.Footballers launched an unprecedented crusade against racism on the terraces.足球运动员们对阶梯看台上的种族歧视发起了一场空...
We need 3 cubic yards of sand.我们需要3立方码的沙子。Detritus usually consists of gravel, sand and clay.岩屑通常是由砂砾, 沙和粘土组成的.The white sand reflected the sun's heat.白色的沙子能反射太阳的热量。The sand massed to form a dune.沙积集起来成了沙丘.Silane co...