rationallyadv.理性地rationaladj.合理的；理性的；能推理的n.有理数rational facton有理化因子rational formula有理公式rational suicide理智性自杀rational control理性控制rational grammar唯理语法,理性语法rational divisor有理因子rational factors理性因素rational egotism合理利己主义Rational meaning理性意义Rational tangent有理正切