他在接受经验性的无环鸟苷治疗后, 多次血培养和脑脊液培养是阴性.He was treated empirically with acyclovir, and multiple blood and CSF cultures were negative.环二鸟苷酸系统是细菌纤维素生物合成中重要的调控体系.The Cyclic Diguanylic Acid Regulatory System is the important regulat...
As I am regretting the advent of dark, the Yangtze discloses a new night - time enchantment.当我正为夜色降临而惋惜的时候,黑夜里的长江却向我展开另外一种魅力.Ellis seemed to be regretting that he had asked the question...埃利斯好像后悔问了这个问题。Regretting the lac...
随便一张旧报纸就行。Any old paper will do.我真的该把这些旧报纸扔掉了.I really must fling out all these old newspapers.我正在找我那被埋在一堆旧报纸下面的手提包。I was looking for my handbag, which was buried under a pile of old newspapers....