音標發(fā)音英式音標 [?n??.m?l ?f??s]美式音標 [?n??r.m?l ?f??rs]英式發(fā)音 美式發(fā)音 基本解釋正交力，法曏力，垂直力。同根派生 normal force相關詞英英字典劍橋英英字典 the amount of force that keeps two surfaces touching, but does not let them come apart or press further togethernormal force劍橋字典normal force柯林斯字典