音標(biāo)發(fā)音英式音標(biāo) [kw??t??.n?r.i]美式音標(biāo) [?kwɑ?.t??.ner.i]英式發(fā)音 美式發(fā)音 基本解釋第四紀(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)）。同根派生 Quaternary相關(guān)詞英漢例句adjectivethe Quaternary period 第四紀(jì)Quaternary glaciation 第四紀(jì)冰川化Quaternary更多例句英英字典劍橋英英字典 from or referring to the period of time from about 2.5 million years ago to the present, in which modern humans appearedQuaternary劍橋字典Quaternary柯林斯字典