电子显微学已经革新了对晶体不完整性的研究.Electron microscopy has revolutionized the study of crystal imperfections.粗的晶体不完整性,如孪生体可用肉眼看出.Gross crystalline imperfections like twinning are apparent to the unaided eye.断裂力学虽不是评定结构完整性的唯一标准, 但它起着中心...
His mood of deep pessimism cannot have been leavened by his mode of transport—a black cab.他极度悲观沮丧，而他的代步工具——一辆黑色的出租车，丝毫不能舒缓这一情绪。My first reaction was one of deep pessimism.我的第一反应非常悲观。An atmosphere of pessimism pervades th...
他用大衣袖子把碎屑掸掉。He cleaned the flakes away with his coat sleeve.她擦掉嘴角的面包屑。She flicked a crumb off the corner of her mouth.地上满是他刻木雕时落下的碎屑。The floor was covered with shavings from his wood carvings....
We sat silent for a while, and a homy feeling invaded my ugly little cubicle.我俩默默地坐了会儿, 这间简陋的斗室刹那间沉浸在家庭温馨之中.Orson Welles managed to convince many Americans that they were being invaded by Martians.奥森·韦尔斯使得许多美国人相信他们正遭到火星人...
经过3个周末的追求之后，帕梅拉接受了伦道夫的求婚。After a three-weekend courtship, Pamela accepted Randolph's proposal of marriage.他接受采访时阐述了持乐观态度的理由。In the interview he gave some grounds for optimism.许多学生并未做好接受高等教育的充分准备。Many students are no...