to arrange for a palce in a hotel,restaurant,plane to kept for you to use at a particular time in the future 预订
reserve sth for sb/sth
a separate room is reserved for smokers.
to keep sth so that it can be used by a particular person or for a particular purpose【为某人或某种用途】保留,留出
Reserve a little of the mixture to sprinkle over the top of the pie.
to keep part of sth for use at a later time during a process-used especially when describing how to cook sth 留出【一部分稍后使用,描述烹调过程】
to use or show sth only in one particular situation 留作,用于【特定场合】
reserve the right to do sth 保留做某事的权利
reserve(your)judgment(on)sth保留最你的看法