n.预约；预订
The booking is only provisional. 这预约只是临时的。
Appointment booking services are free of charge. 预约服务是免费的。
I am John Smith,and I'd like to confirm my booking. 我是约翰·史密斯,我要确认一下我的预订。
n.登记
v.超额订出；预订过多
