Quaternary

劍橋詞典

from or referring to the period of time from about 2.5 million years ago to the present , in which modern humans appeared
第四紀(jì)的（迄今約250萬前至今的地質(zhì)時間段，這期間現(xiàn)代人出現(xiàn)）
the Quaternary period 第四紀(jì)
Quaternary glaciation 第四紀(jì)冰川化

the Quaternary

noun [ 單數(shù)名詞 ] us


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the Quaternary period
第四紀(jì) 返回 Quaternary