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Although paleontologists had known for many years that the bones of dinosaurs contain growth lines, something like the circumferential growth rings we see in trees, it was only in the second half of the 20th century that they began to use these growth lin
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虽然早在许多年前，古生物学家就已经知道，恐龙骨骼里有著类似树木年轮的生长线；但直到20世纪后半，生长线及骨骼中的其他结构，才被用来研究这些已灭绝动物的生长情形。 |
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Although papyrus was widely used over a long period of time, other materials were also used for writing in ancient Egypt.
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在古埃及，虽然纸莎草纸曾在一个长时期中被广泛使用，但是也有其它的书写材料。 |
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Although paralysis by muscle relaxants simplified exposure of the operative site and decreases the need for volatile anesthetics, many signs of anesthesia are absent in the paralyzed patient.
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尽管肌肉松弛剂所导致的麻痹使手术野易于暴露并减少挥发性麻醉剂的需要量，但麻痹病人缺乏许多麻醉征象。 |
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Although parasitism by trematodes is the likeliest explanation for most outbreaks of amphibian deformities, it is certainly not the only cause and may often be abetted by additional factors.
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受到吸虫寄生虽是多数两生类畸形的最可能解释，但绝不是唯一的原因，往往也可能受到其他因子连带影响。 |
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Although parent would be able to dev ote much more time and energy to their c hildren, it must be admitted that, parent has less experience and knowledge about how to&n bsp;educate and supervise children, when compared with professional teachers working i
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尽管父母能在他们孩子身上投入更多时间和精力，但是必须承认，与工作在幼儿园的专职教师相比，他们在如何管理教育孩子方面缺乏知识和经验。 |
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Although participants risk injury, it's not enough to make some Nebraska cowboys hang up their spurs.
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尽管选手们有受伤的危险，但这并不能使内布拉斯加州的牛仔们挂起他们的马靴。 |
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Although patients expect their doctors to be knowledgeable and competent clinicians, they also need their doctors to be reassuring, supportive and sympathetic.
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虽然病人都希望自己的医生是有知识能用途的临床医师；但他们同时也需要医生会安慰人、乐于助人、富有同情心。 |
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Although pcs were developed as early as 1977, the ultimate size of the market and the computers' great potential for word processing and spreadsheet analysis did not become clear until about 1984.
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尽管个人电脑早在1977年就已经开发出来了，其最终市场规模及其在文字处理和数据分析方面的巨大潜力直到1984年才变得清晰起来。 |
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Although peca are most plentiful in the southeastern part of the United States, they are found as far north as Ohio and Illinois.
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虽然美洲山河桃树最集中于美国的东南部但是在北至俄亥俄州及伊利诺州也能看见它们。 |
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Although pecans are most plentiful in the southeastern part of the United States, they are found as far north as Ohio and Illinois.
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虽然美洲山河桃树最集中于美国的东南部但是在北至俄亥俄州及伊利诺州也能看见它们。 |
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Although people all over the world stood in long lines to be the first to buy boxed and shrink-wrapped copies of Microsoft's latest operating system, it was thought that such products would in future be delivered direct to their computers over high-speed
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虽然全世界各地的人排着长队，就是为了第一个买到盒装的最新版微软操作系统的紧缩套装（译注1），微软却相信类似的产品将来会通过高速网络直接发送到用户的电脑上。 |
