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gravitation
英/ɡɹˌævɪtˈeɪʃən/
美/ˌɡɹævɪˈteɪʃən/
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01n.
引力, 重力, 沉下
movement downward resulting from gravitational attraction; a figurative movement toward some attraction
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movement downward resulting from gravitational attraction; a figurative movement toward some attraction