基本解释num.两个半同根派生 two-and-a-half相关词英汉例句用作数词 (num.)The equator divides the earth into two hemispheres.赤道把地球划分成为两个半球。The play lasted for three and a half hours.这出戏演了三个半钟头。two-and-a-half更多例句