关于Slower的学习知识

Patient:Whatdoyouchargeforpullingatooth?Dentist:Fiftydollars.Patient:Fiftydollarsforacoupleofminutes'work?Dentist:Well,Icoulddoitslower,ifyoulike.我可以干得慢一些病人：拔一颗牙收费多少?牙医：50美元。...