Have you ever noticed an advertisement which says

Have you ever noticed an advertisement which says
"Learn a foreign language in six weeks,or your money back!From the first day your pronunciation will be excellent.Just send…" and so on?Of course,it never happens quite like that.The only language that is easy to learn is the mother tongue.And think
how much practice that gets!Before the Second World War people usually learned a foreign language in order to read the literature (文学) of the country.Now speaking the foreign language is what most people want.Every year many millions of people start learning one.How do they do it?Some people try at home,with books and tapes; some use radio or television programmes; others go to evening classes.If they use the language only two or three times a week,learning it will take a long time,like language learning at school.A few people try to learn a language fast by studying for six or more hours a day.It is clearly easier to learn the language in the country where it is spoken.However,most people cannot afford this,and for many it is not necessary.They need the language in order to do their work better.For example,scientists and doctors
mainly need to be able to read books and reports in the foreign language.Whether the language is learned quickly or slowly,it is hard work.Machines and good books will help,but they cannot do the students work for him.

“在6个星期之内学会一门语言,不然退钱（学费）,从第一天开始,你的发音就很出色,只需要发送."当然这种事情,永远不会发生.最容易学习的语言是我们的沐浴,我们试想,我们花了多久去掌握母语.在第二次世界大战,人们通常学习另外一门语言为了阅读国家文学.现在大多数人是想说第二语言.每年,有几百万人开始学习一种语言.他们是怎么做的.有些人在家看书和听磁带.有些人利用收音机和电视节目.另外的就上夜校.如果他们一个礼拜用这种语言2到3次,这样要学习相当长的一段时间.就想在学校学语言一样.很少有人每天学习多余6个小时的.很明显,在需要的地方学习语言是相当容易的.但是,很多人不这么做.而且,也不可能这么做.他们需要语言为了更好的工作,例如科学家和医生.
大多数是需要外语读书和读报告的.不管学习语言是慢还是快,都是一个辛苦的活儿.机器和书可以帮助我们,但是他们不能帮我们做学生的工作.