问一篇英语文章的中心句是什么拜托各位了 3Q

问一篇英语文章的中心句是什么拜托各位了 3Q
Climbing a mountain is hard work.But one step after another finally brings a person to the top.Along the way,he can stop and look around.And the higher he climbs,the more wonderful his view (视野) is.If he keeps climbing,he will have a new world before him.He will have a new way of seeing everything.Now learning another language is something like climbing a mountain.This new language can give you a new view of life.And it is more than a look at the surface (表面) of things.It can open the way into people’s minds and hearts,into a culture (文化) very different from the one of your own.This will make you richer,richer in things that money can’t buy.Even though you never set foot on a ship or a plane,you can be an armchair traveller through books.Like the mountain climber who stops now and then to enjoy the scenery around him,everyone who is interested in reading will find pleasure in books as he fights on to learn more and more of that new language.