| 释义 |
eocene epoch 释义 始新世 例句 1·Few or any anthropoids are known to have existed in Africa during this period, known as the Eocene epoch . 人们原先不知道在这个被称为“始新世”的时期,非洲有类人猿的存在。 2·Though the Cretaceous asteroid cleared the stage, mammals did not really get going until 10m years later, in the Eocene epoch . 尽管白垩纪时小行星撞击地球后为哺乳动物搭起了活动的舞台,但是哺乳动物真正大行其道是100万年以后的事情了,也就是在始新世时期。 3·The microorganisms had lain dormant since the Eocene epoch , a time when Australia split off from Antarctica and modern mammals first appeared. 自始新世(5300-3650万年前)开始,它们便沉睡在化石之中,在那个时代,澳洲板块刚刚与南极板块分离,而现代哺乳动物刚刚开始出现。
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