walk-in

The barbershop accepts walk-in customers every day from 10 a.m.这家理发店每天上午10点开始接待无需预约的顾客。

The walk-in clinic was a great option for minor issues without needing a prior appointment.这家无需预约的诊所是处理轻微健康问题而又无需提前挂号的绝佳选择。