还没看到他们，我便听到他们穿过矮树丛过来的声音。I heard them coming, crashing through the undergrowth, before I saw them.一顶橄榄色帐篷扎在树丛当中。An olive-coloured tent stood within a thicket of trees.我们蹲在树丛里。We were crouching in the bushes....
Gene mutations are alterations in the DNA code.基因突变是指DNA密码的改变.Both frameshift and missense mutations can be suppressed by intragenic suppressors.移码突变和异义突变都能被基因内抑制基因所抑制.Genetic effects include inheritable changes resultin...
本文报道了用菱锌矿作原料,制备硫酸锌的工艺条件.The technological conditions of the preparation of zinc sulfate with smithsonite as raw materials was reported.研究了以菱锌矿为原料通过酸浸、除杂、中和、沉淀、干燥制备碱式碳酸锌和活性氧化锌的生产工艺.A process for the production of basic zi...
They like to go ballooning at weekends.他们周末喜欢乘气球玩.Esther used to visit him for the occasional days and weekends.埃丝特过去会偶尔在周末或别的日子来探望他。It was virtually impossible to synchronise our lives so as to take holidays and weekend...