365bet中国官方网站

  • word of the day

    acetylene

    acetylene - 365bet中国官方网站 definition and meaning for word acetylene

    Definition
    (noun) a colorless flammable gas used chiefly in welding and in organic synthesis
    Synonyms : alkyne , ethyne

  • Word used in video below:
    text: how about an acetylene torch
    Download our Mobile App Today