precambrian

词性

名词

基本解释

n.[地]前寒武纪,前寒武层

网络释义

前寒武纪(地质学中指地质年代早于寒武纪的时期)

例证

1. The Precambrian era is the longest span of time in Earth's history.
(前寒武纪时代是地球历史上最长的时间段。)

2. Many important geological events, such as the formation of the continents, occurred during the Precambrian period.
(许多重要的地质事件,例如大陆的形成,发生在前寒武纪时期。)

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