Precambrian

劍橋詞典

from or referring to the earliest period of time , between about 4,600 and 543 million years ago, from when the earth was formed until the first simple forms of life appeared
前寒武紀(jì)的（地質(zhì)年代的最早階段，迄今約46-5.43億年前之間，自地球開始形成起至第一個簡單形式的生命出現(xiàn)）
Precambrian time 前寒武紀(jì)時代／時期
Precambrian rocks 前寒武紀(jì)巖石

the Precambrian

noun [ 單數(shù)名詞 ] uk


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the Precambrian period of time
前寒武紀(jì)時期 返回 Precambrian