serv＝to serve（服务）,to keep（保持）
1 [C] reserved seat or accommodation, etc; record of this 保留的座位、住处等; （座位、住处等的）预订
*a coach, hotel reservation 预订的客车座位、旅馆房间
* make, hold reservations (in the name of T Hill) （以T·希尔的名字）预订. Cf 参看 booking (book2).
2 [U, C esp pl 作不可数名词或可数名词, 後者尤作复数] spoken or unspoken limitation which prevents one's agreement with a plan, acceptance of an idea, etc 保留意见; 保留态度
*I support this measure without reservation, ie completely, wholeheartedly. 我毫无保留地支持这一措施.
* express certain (mental) reservations about an offer 对某项提议表示（有）一定的保留意见
* I have my reservations (ie doubts) about his ability to do the job. 我对于他做该项工作的能力持保留看法（怀疑他能否胜任）.
3 [C] (Brit) strip of land between the two carriageways of a road 道路中央双向交通的分隔带
*the central reservation 路中双向交通分隔带.
4 [C] area of land reserved in the US for occupation by an Indian tribe （美国印第安部落的）居留地.
an arrangement which you make so that a place in a hotel, restaurant, plane etc is kept for you at a particular time in the future
→booking a dinner reservation Customers are advised to make seat reservations well in advance. [U and C]
a feeling of doubt because you do not agree completely with a plan, idea, or suggestionhave/express reservations (about sth) I had serious reservations about his appointment as captain. We condemn their actions without reservation (=completely) .[C]
an area of land in the US kept separate for Native Americans to live on a Navajo reservation[C]AmE
an area of land where wild animals can live without being hunted
American Equivalent: preserve a wildlife reservation
1. Have you the reservation for this room? 你是预定这个房间吗?