这句子意思是，一个梦想并不够，尤其是对于那些深爱和关心自己身边的人来说。 全句是一般现在时态。 One dream is not always enough，明显主系表。主语One dream，表语 enough，表示足够的。 especially for a person who loves and cares for his people. who 引导的是定语从句。补充说明a person是什么样的person呢，是loves and cares for his people的人。 One dream is not always enough for a person who loves and cares for his people，这样改也是对的。