我用中文回答不要紧吧？呵呵 1.far more important 是“更加重要”的意思，举个例子，studying is far more important than dancing，学习比跳舞重要 2.the key to 是表示“···的关键是····”例子像楼上那个老美一样的，The key to learning a new language is to study it often，掌握一门新的语言的关键是经常反复学习 3.It is necessary to是表示“·····是·····所必须的”是必须做的事情，It is necessary to study a language daily in order to learn it well 为了学好语言，每天的学习是必须的 4.lasts longer是表示“·····所持续的时间长于····”A 2 hour movie lasts longer than a 30 minute television show一部两小时的电影比30分钟的电视节目要长 stave 是表示“推迟”一般用"stave off"，意思是“推迟”Have small snacks frequently to stave off hunger 经常地吃一点儿东西可以推迟饥饿感的来临。 以防万一你最好再问一下英语老师 谢谢

Far more important just means that one thing is more important than the other. "It is far more important to find love in life than to make money" The key to means something is necessary to get a certain result. "The key to learning a new language is to study it often." It is necessary to- means you must do something- "It is necessary to study a language daily in order to learn it well" Lasts longer- refers to something lasting for a long time. A 2 hour movie lasts longer than a 30 minute television show. stave- means to keep something from happening. Usually used in the phrase "stave off". "Have small snacks frequently to stave off hunger."