Learn English free online - how to pronounce word in English - English Learning Online- www.pronounceword.com






atomic number 63
  • 英语发声
  • 美语发声
  • n. a bivalent and trivalent metallic element of the rare earth group

    同义词: europium Eu

  • 网络释义

    短语

    专业释义

    英英释义

    atomic number 63

    n.a bivalent and trivalent metallic element of the rare earth group

    同义词:europiumEu




    英汉双解大词典