关於奥巴马写给她女儿们的一封信里一句话的语法问题?
这句话有语法错误吗?怎么分析它的结构?它的主谓宾是那些成分?
But I also know that it hasn't always been easy for you and Mom,and that as excited as you both are about that new puppy,it doesn't make up for all the time we've been apart.