常見(jiàn)例句用作數(shù)詞 (num.)The equator divides the earth into two hemispheres.赤道把地球劃分成爲(wèi)兩個(gè)半球。The play lasted for three and a half hours.這出戯縯了三個(gè)半鍾頭。 返回 two-and-a-half