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This was towards the end of the Triassic period.
那时已是三叠纪末期。
youdao
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About halfway through that period, known as the Triassic, an asteroid struck Earth.
在那段时期的中间，也就是三叠纪时期，一颗小行星撞击了地球。
youdao
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About halfway through that period, known as the Triassic, an asteroid struck Earth.
在那段时期的中间，也就是三叠纪时期，一颗小行星撞击了地球。
youdao