酒店预定单在英语中可以称为"hotel reservation"或"hotel booking."
"Hotel reservation"来源于拉丁文的"reservare,"意思是"保留、预定"。
"Hotel booking"来源于英文的"book,"意思是"预定、预订"。
下面是一些例句：
I would pke to make a hotel reservation for two nights. (我想预定两晚的酒店。)
Can you please confirm my hotel booking for the weekend? (请确认我周末的酒店预订。)
I need to cancel my hotel reservation. (我需要取消我的酒店预订。)
I received a confirmation email for my hotel booking. (我收到了酒店预订的确认电子邮件。)