At a time when natural history was a valuable tool for discovery, Merian discovered facts about plants and insects that were not previously known.
在那时，自然史是很有价值的探索工具，梅里安发现了有关植物和昆虫的真相，这些真相从未为人所知。
He seemed likely to become a country priest like hundreds of others, sharing his time between his work and his interest in natural history and country life.
看来，他像数以百计的其他学生一样可能成为一位乡村牧师，工作的同时，还可以兼顾自己对博物学和乡村生活的兴趣。
Since time immemorial, infectious diseases have had a dramatic impact on human history. They have affected-and been affected by-economic conditions, wars, and natural disasters.
远古以来，传染病对人类历史有着引人注目的影响。传染病影响了——并且受到了经济状况、战争和自然灾害的影响。
In the history, many places developed a lot of natural landslide-dams, some broke quickly, some existed for a long time.
历史上产生过许多天然滑坡坝，有些很快发生溃坝，有些存在时间很长。
The Natural History Museum, an integral part of the Institute, was founded at the same time under the original name of Physiographic Museum.
同年建立的自然历史博物馆是该所的一部分，当时它的名称是自然地理博物馆。
Ever since the ancient time the love of beauty has been the nature of human being. People used natural materials as leathers, furs, leaves to clothe themselves in the ancient history.
自古以来，爱美是人的天性，远古时期的人类就利用动物的皮毛、树叶等天然材料直接来装扮自己。
What is worth mentioning is that the natural increase rate in Shanghai is negative for the first time in history.
值得注意的是上海的自然增长率历史上第一次出现了负数。
And it is now a star attraction at the American Museum of Natural History, profiling the connection over time between people and this precious metal.
它现在是美国自然历史博物馆的耀眼之星，它向人们讲述了人类与这种珍贵金属之前的渊源。
In Yingde, you can walk through the time tunnel of history, seeking ancestors' traces, travelling in the picture-like mountains and forests and tasting the natural Hakka Food.
行走在历史的时光隧道，延寻古人的游迹，游走于风景如画的山川峰林，品尝原生态的客家美食。
In Yingde, you can walk through the time tunnel of history, seeking ancestors' traces, travelling in the picture-like mountains and forests and tasting the natural Hakka Food.
行走在历史的时光隧道，延寻古人的游迹，游走于风景如画的山川峰林，品尝原生态的客家美食。
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