萬杯潔海词词典

Ordovician

萬杯潔海词词典

音标发音

  • 英式音标 [ˌɔː.dəˈvɪʃ.ən]
  • 美式音标 [ˌɔːr.dəˈvɪʃ.ən]
  • 英式发音
  • 美式发音

基本解释

  • n.奧陶紀；奧陶系
  • adj.奧陶紀的

同根派生

     

英汉例句

    用作名詞 (n.)

  • This was the result from the large-scale regression in the Late Ordovician.
    這是奧陶紀晚期大槼模海退的結果。
  • Major hydrocarbon source rocks are in the Cambrian and Ordovician.
    寒武-奧陶系烴源巖是該區主力烴源巖;

英英字典

    劍橋英英字典

  • from or referring to the period of time between about 485 and 445 million years ago, in which there were many different types of animals in the sea, including vertebrates (= animals with back bones), but no life on land