365bet中国官方网站

  • word of the day

    newton's first law of motion

    newton's first law of motion - 365bet中国官方网站 definition and meaning for word newton's first law of motion

    Definition
    (noun) a body remains at rest or in motion with a constant velocity unless acted upon by an external force

  • Word used in video below:
    text: quick pain-free motion
    Download our Mobile App Today