During the nineteenth century, 20, made of Portland cement, concrete has come out.
十九世纪20年代，波特兰水泥制成后，混凝土问世了。
UGG Boots made their first appearance in Australia, back during the nineteenth century.
UG G靴子首次出现在澳大利亚、背在十九世纪。
During the nineteenth century, a unit of chemical currency called the mole came into use.
十九世纪时，人们开始使用一种称为摩尔的化学通用单位。
During the nineteenth century, advances were made in the use of driers to speed the drying of ink.
十九世纪里，在使用干燥剂加速油墨干燥方面取得了进展。
Although vastly popular during its time, much nineteenth-century women's fiction in the United States went unread by the twentieth-century educated elite, who were taught to ignore it as didactic.
19世纪的美国女性小说虽然在当时广受欢迎，但20世纪受过教育的精英们却没有读过，他们被教导忽视这本书，认为这是说教。
Malainey et al. find a possible explanation in late-eighteenth and early-nineteenth century accounts from three frontiersmen who had adapted to lean-meat diets during extended periods in the plains.
马莱内等人在18世纪末和19世纪初的三个前沿地区发现了一个可能的解释，这些前沿国家在平原上长期适应了瘦肉饮食。
During the late nineteenth century, she traveled around the world to learn about foreign cultures and improve her knowledge of art.
在十九世纪后期，她周游世界各地，了解外国文化，增进自己的艺术修养。
A similar decline occurred in East Asia during recent centuries but was reversed, step by step, by Japan in the nineteenth century and the Asian “tigers” after World War II.
在近几个世纪中，东亚也曾出现相似的衰退，但随着日本在19世纪的崛起、亚洲“四小龙”在二战后的兴起，东亚又逐渐恢复了活力。
Historians say she was the strongest influence on the education of American young people during the middle of the nineteenth century.
历史学家说她是十九世纪在年轻的美国人教育上最有影响的人。
Church membership multiplied several times during the first five decades of the nineteenth century; there is some evidence that large evangelistic meetings produced this amazing growth.
在十九世纪的前五十年中教会的成员增加了许多倍；有一些证据显示大形的布道会产生了这个惊人的成长。
Who attempted to build something called a "Difference Engine" during the first half of the nineteenth-century, a kind of mechanical calculator designed to compute various sets of Numbers?
知不知道在上半19世纪，他试图发明一种叫做“差分机”的东西，这是一种机械计算器，可以进行多种不同系列的数字运算？
During the second half of the nineteenth century, the United States was not concerned much with events in other countries.
在19世纪的下半页，美国并不多去关心别的国家的事情。
During the second half of the nineteenth century, the United States was not concerned much with events in other countries.
在19世纪的下半页，美国并不多去关心别的国家的事情。
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