yesterday is history tomorrow is mistery,and today is gift than's why we call it the present

问题描述:

yesterday is history tomorrow is mistery,and today is gift than's why we call it the present
刚刚少写了 .在帮我解释下可以吗

昨天是历史,明天是秘密,而今天是比礼物更宝贵的礼物