In the 19th century, inbreeding nearly led to the extinction of the royal family.

19世纪，近亲婚配几乎导致了皇室宗族的灭绝。

《柯林斯英汉双解大词典》

Who played the role of storyteller in the 19th century US?

在19世纪的美国，谁扮演了讲故事的角色？

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He told me hunting ducks and geese began in the 19th century.

他告诉我，猎杀鸭鹅始于19世纪。

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The modern circus developed in the 19th century.

VOA: special.2009.01.11

It is an electron beam. In the 1890s, the latter part of the 19th century a very fashionable word was "ray."

那是个电子束，在十九世纪九十年代，就是19世纪末,一个很时髦的词汇-“光线“

麻省理工公开课 - 固态化学导论课程节选

The last time this volcano did erupt in the early 19th century, he says,it lasted two years.

VOA: standard.2010.04.16

In the 19th century, economics was a pastime of inquisitive gentlemen, a branch of philosophy.

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And America has protected its industries before, as they did in the 19th century.

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The other four figures are all nuns who founded religious orders in the 19th Century.

BBC: Pope beatifies 'father of cappuccino'