adj.微不足道的；断片的；分数的；小数的
The difference between bus and rail fares is fractional. 公共汽车费与火车费相差无几。
In this case the fractional part is discarded. 在此情况下小数部分被丢掉了。
adj.折射的(折射度测定的)
adv 极少地; 微小地
