reservation
/ˌrezəˈveɪʃn; ˌrɛzɚ`veʃən/ n
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. 我对於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.