几个世纪以来，探险家们冒着生命危险探索未知的世界，其原因在不同程度上与经济和民族主义有关。
For centuries, explorers have risked their lives venturing into the unknown for reasons that were to varying degrees economic and nationalistic.
自上世纪80年代和法国科学家联手开展研究以来，泰国古生物学家们记录了五个恐龙新属种和六个以前未知的物种。
Paleontologists have documented five new genuses of dinosaurs and six previously unknown species since research began in the 1980s in partnership with French scientists.
但自20世纪初以来，它们的数量已逐渐减少，随之而来的是由此对海洋生态系统和全球碳循环产生的未知后果。
But their Numbers have dwindled since the dawn of the 20th century, with unknown consequences for ocean ecosystems and the planet's carbon cycle.
组织者声称，西蒙克·威尔，这位打造了未知元素和美国偶像的知名制作人重塑了21世纪全球的电视与音乐。
The impresario, best known for the X Factor and American Idol, has "reshaped 21st century television and music around the world," organisers said.
正如描绘在中世纪地图边白处的奇怪生物，未知世界的情形是观测和猜测的混体。
Like the creatures drawn on the edge of a medieval map, the shapes of the denizens of this land are a mixture of observation and guesswork.
他们使用“X ”和“Y”这样的密码，自称“未知”。但是我们确定他们在每个国家都属于一个以共同分母为轴心的中世纪坐标。
They use secret code names like 'x' and 'y' and refer to themselves as' unknowns', but we have determined they belong to a common denominator of the axis of medieval with coordinates in every.
这种未知的祖先马奶位于爱荷华州中部，在二十世纪早期的一部分。
This mare of unknown ancestry was located in central Iowa during the early part of the twentieth century.
探索，观察，聆听，认识一个未知的世界——21世纪。
To explore, to see, to listen, and to discover the unknown world - the 21st century.
现代学术同意，本书是由圣若望宗徒，但在公元1世纪后期的各种未知的作者不是。
Modern scholarship accepts that the book was written not by St. John the Apostle but by various unknown authors in the late 1st century AD.
有人形容二十一世纪的生物科技是一场在未知的、变动的领域中旅行。
Biotechnology is the science of the twenty-first century-a journey into undiscovered and constantly evolving territory.
我们失去一种语言，就意味着失去了人类好几个世纪对于时间、季节、海洋生物、驯鹿、食用花卉、数学、风景、神话、音乐、未知事物以及日常生活的思考成果。
When we lose a language, we lose centuries of human thinking about time, seasons, sea creatures, reindeer, edible flowers, mathematics, landscapes, myths, music, the unknown and the everyday.
在一个未知的时刻，公元前五世纪的Cadusians受到了波斯人。
At an unknown moment in the fifth century BCE, the Cadusians were subjected by the Persians.
在一个未知的时刻，公元前五世纪的Cadusians受到了波斯人。
At an unknown moment in the fifth century BCE, the Cadusians were subjected by the Persians.
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