珍惜:cherish/treasure 把握:seize 回忆:recall/recollect/reminisce 怀旧:nostalgia 纪念:in memory of/commemorate 虚度:waste/loiter/squander/idle away 流逝:time flies/ wear away 延迟:delay/procrastinate 转瞬即逝:in a blink of an eye 千载难逢:once in a blue moon
