alternativesn.其它选择；备选方案名词alternative的复数形式.alternativeadj.两者择一的；供选择的；非主流的n.二者择一；供替代的选择alternative future未来发展趋势预测alternative denial“与非”, “与非”门alternative system替代系统alternative sector备份扇区, 替换扇区alternative supply交替供给alternative weekly另类周刊alternative version替换版本alternative penaltyn.替代处罚alternative offence交替罪alternative project比较设计