柯林斯詞典Pleistocene /?pla?st??si?n/ 1. ADJ of, denoting, or formed in the first epoch of the Quaternary period, which lasted for about 1?600?000 years. It was characterized by extensive glaciations of the N hemisphere and the evolutionary development of man 更新世的2. N the Pleistocene epoch or rock series 更新世 返回 Pleistocene劍橋詞典from or referring to the period of time between around 1.8 million and 11,000 years ago, in which modern humans first appeared , and the Northern Hemisphere experienced an ice age 更新世的，洪積世的（迄今約180萬至1萬年前的地質(zhì)時(shí)間段，此時(shí)現(xiàn)代人開始出現(xiàn)，北半球經(jīng)歷冰河時(shí)代） the Pleistocene epoch 更新世時(shí)代 These are thought to be Pleistocene rocks . 人們認(rèn)爲(wèi)這些是更新世巖石。 the Pleistocene noun [ 單數(shù)名詞 ] uk Your browser doesn't support HTML5 audio us Your browser doesn't support HTML5 audio the Pleistocene epoch (= part of a period of time in the earth's history ) 更新世，洪積世 返回 Pleistocene