substitutions 是 substitution 的复数substitutionKK [ˏsʌbstɪˋtuʃən] /ˌsʌbstɪˈtuʃən/发音名词1替代、代替、取代The substitution of butter with oil changed the cake's texture.用油替代奶油改变了蛋糕的口感。2替代品、代用品Honey makes a reasonable substitution for sugar in this recipe.在这道食谱里,蜂蜜是还不错的砂糖替代品。3换人、替补运动The coach made three substitutions in the second half.教练在下半场做了三次换人。4代入、代换数学Solve the equation by substitution of the known value.把已知数代入,即可解出这个方程式。用这个字练口说→