薄薄的一层表土被冲走了。A thin layer of topsoil was swept away.那单薄的土地很快就失去了表土,成为沙粒和尘埃.The fragile land quickly lost its topsoil and became nothing but sand and dust.从工地挖出的表土须用于筑堤的石笼上.Topsoil excavated from the work site shall be app...
The blame for the Charleston fiasco did not lie with him.查尔斯顿惨败错不在他。Columbia was a young city compared to venerable Charleston.与历史悠久的查尔斯顿相比，哥伦比亚是个年轻的城市。Savannah, Charleston, Augusta, Richmond, New Orleans would never hur...
介绍了一种新的测定亚硝酸根的荧光探针分子 ——— 3- ( 4-氨基苯基 ) 中氮茚-1-羧酸甲酯 ( API ).A novel fluorescence probe, 3 - ( 4 - aminophenyl ) indolizine - 1 - carboxymethyle ( API ) has been developed for the determination of trace nitrite.介绍了一种新的测定亚硝酸...
Is gesticulation easier said than done?用手势表达意思做起来很难 吗 ?Suddenly, the postilions exchange speech with animated gesticulation, and the horses are pulled up, almost haunches.突然两个车夫激动地打着手势争论起来, 猛一带马, 马匹几乎倒坐在地上.In fact , the ...