她对英国的监狱问题只有些许模糊的认识。She had only a hazy idea of Britain's prison problems.他只能看见球门柱模糊的轮廓。He could see only the hazy outline of the goalposts.我看见另有一些模糊的影子晃了一下就不见了。I saw other indistinct shapes that stayed out of vision...
In covalent bonding, atoms share electrons.在共价键联中, 原子共有电子.Crystals may be classified as either ionic or covalent by analogy with molecules.与分子的情况一样,晶体也可以分为离子键型和共价键型.Ceramics primarily have ionic bonds, but covalent bondi...
A few years later, Boulton applied steam power to minting coins.几年以后, 博尔顿将蒸汽动力应用到了硬币铸造.So the two main minting methods. of the ancient time were the pressed and the cast ones.因此,古代硬币制作是用铸造和冲压两种方法.Muscovites have always r...