Life has its own evolutionary process.生命有其自身的进化过程。...a period of evolutionary change.演变时期The resemblance of families such as the Verbenaceae and Labiate is the result of evolutionary convergence.科的相似性,如马鞭草科与唇形科的相似性,是进化上的...
外国的考古学者们联翩而至.Foreign archaeologists are arriving one after another.他是位考古学家，过去的一年都在参与克里特岛上的一项考古发掘工作。He's an archaeologist and has been on a dig in Crete for the past year.考古天文学家们广泛开展了对这类古代遗址的探索.Archaeoastronomers hav...
The drug isoniazid is widely used in the treatment of tuberculosis.异菸肼是广泛用于治疗结核的药物.Results Ethambutol hydrochloride, isoniazid, pyrazinamide and rifampicin all had good chromatographic behavior.结果盐酸乙胺丁醇 、 利福平、吡嗪酰胺和异烟肼均具有...
His stable services were merely a sinecure, and consisted simply in a daily care and inspection.他在马厩里的工作是个轻闲差使, 每天只要去照料照料巡视一番.This is hardly a [ not a, no ] sinecure.这哪里是 [ 不是 ] 闲差事((很忙)).This is a [ not a, no ] sinecure...
科学家们正试图将天文学中的各派观点整合在一起。Scientists are trying to pull together disparate ideas in astronomy.总的说来，航空企业很好地促进了天文学的发展。Speaking generally, the space enterprise has served astronomy well.我们很快就将迎来天文学的新纪元。We are on the threshold ...
The small British crowd roared themselves hoarse, waving their Union Jacks.一小群英国人挥舞着国旗，吼得嗓子都沙哑了。Overhead, the chopper roared and the big blades churned the air.头顶上，直升机在呼啸，巨大的螺旋桨叶片搅动着空气。He delivered the line perfectly, an...