劍橋詞典from or referring to the period of time between around 144 and 65 million years ago, in which plants with flowers first appeared 白堊紀(jì)的；來自白堊的（白堊紀(jì)爲(wèi)距今約1.44億年至0.65億年前的地質(zhì)時期，有花植物首次出現(xiàn)） the Cretaceous period 白堊紀(jì) Cretaceous rocks 白堊紀(jì)時期的巖石 the Cretaceous noun [ 單數(shù)名詞 ] uk Your browser doesn't support HTML5 audio us Your browser doesn't support HTML5 audio the Cretaceous period 白堊紀(jì) 返回 Cretaceous