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n. 大陆，洲6 次
They then traced how the animals spread across the rest of the continent into Europe and Asia about 2,500 years later.
随后他们追踪了这些动物如何扩散到非洲大陆的其他地区，并在大约2500年后进入欧洲和亚洲。
But when Swetnam enrolled in graduate school at the University of Arizona’s Laboratory of Tree-Ring Research, he was surprised to find a record of repeated blazes dating back hundreds of years before European colonists arrived on the continent.
但当斯韦特纳姆进入亚利桑那大学树木年轮研究实验室读研究生时，他惊讶地发现了一份反复发生火灾的记录，这些记录可以追溯到欧洲殖民者抵达这片大陆之前的数百年。
In 2022, Swetnam and other scientists teamed up to compile a database of fire-scarred trees from across the continent.
2022年，斯韦特纳姆和其他科学家合作，汇编了一个涵盖整个北美大陆带火疤树木的数据库。
(46) This movement, driven by powerful and diverse motivations, built a nation out of a wilderness and, by its nature, shaped the character and destiny of an uncharted continent.
(46) 这场运动在强大而多样的动机驱使下，在一片荒野上建立了一个国家，并且就其本质而言，塑造了一块未知大陆的性格和命运。
(48) But the force of geographic conditions peculiar to America, the interplay of the varied national groups upon one another, and the sheer difficulty of maintaining old-world ways in a raw, new continent caused significant changes.
(48) 但是，美洲特有的地理条件的影响、各民族群体之间的相互作用，以及在一片未开发的新大陆上保持旧大陆生活方式的极大困难，引起了重大的变化。
Now even the project's greatest cheerleaders talk of a continent facing a “Bermuda triangle” of debt, population decline and lower growth.
如今，就连这一计划最热情的支持者也在谈论欧洲大陆正面临着由债务、人口减少和增长放缓构成的“百慕大三角”。