Ordovician

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

• Ordovician相关词

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;

• Ordovician更多例句

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

• Ordovician剑桥字典
• Ordovician柯林斯字典