Two types of viral symmetry have been recognized, the cubical symmetry and helical symmetry.已经证实病毒有两种对称型, 即立体对称和螺旋对称.The polynucleotide chain is helical.多核苷酸键是螺旋形的.The high laevorotation of L - cystine depends on a speci...
The polynucleotide chain is helical.多核苷酸键是螺旋形的.In a globular protein, certain portions of the chain are coiled into helical segments.在球状蛋白中, 链的某些部分被盘成螺旋状.Two types of viral symmetry have been recognized, the cubical symm...
This year we're going trekking in Nepal.今年我们准备去尼泊尔远足。She can't come pony trekking after all because she's in a delicate condition.她结果还是不能坐小马车旅行,因为她已怀孕.When we think of adventurers, many of us conjure up im...
He came upon the hulking redbrick hospital.他偶然发现了这座红砖砌成的森然高耸的医院。When I woke up there was a hulking figure staring down at me.我醒来时，有个巨形身影正低头盯着我看。We can't move that hulking great desk on our own.靠我们自己没法搬动那张又大又笨重的办公桌....
在出发的三天之前打电话预订即可。Just phone in your order three or more days prior to departure.我们可以安排提供从芝加哥奥黑尔机场出发的租车服务。We can organise car rental from Chicago O'Hare Airport.从大陆出发的汽车轮渡常常在2月前就被预订一空。The car ferries from the mainland...
The doll-like figures in these stories are unlike anybody, let alone oneself.这些故事中的玩偶形象跟谁都不像，更不用说像自己了。We can't afford a bicycle, let alone a car.我们连自行车也买不起, 更不用说汽车了.He's the best shot in the world, let alone in...
The ship is tiding into the harbor.船在趁潮进港.The freighter tied up at a small harbor.货船停泊在一个小港口里。At that time, our ship was tied up at this harbor.当时我们的船停靠在这个港口。A British battleship, which had been damaged severely in the b...