fractionKK [ˋfrækʃən] /ˈfɹækʃən/发音名词1一小部分、些微、少许Only a small fraction of the audience stayed until the end.只有一小部分观众留到最后。2分数数学The students learned to add and subtract fractions today.学生今天学了分数的加法和减法。3馏分、组分化学Each fraction is collected at a different boiling point.每个馏分都在不同的沸点下收集。用这个字练口说→