time of origin
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英 
英汉解释
例句
This estimated time of origin is decades earlier than the previous estimate of 1930.
此次估计的起源时间比原以为的1930年要早数十年。
Fossil Records and Molecular Clock Study of the Time of Origin of the Precambrian Biologic Lineages
前寒武纪生物起源时间的化石和分子钟研究