其中在一般的社交信中,信内收信人的地址通常省略,但是在公务信函中不能。将收信人的姓名、地址等写在信头日期下方的左角上,要求与对信头的要求一样,不必再写日期。例如:
当新学期来临时,许多学生对新生活表现得很兴奋。在大学,新生快乐地享受着自由。在接下来的四年里,他们希望过着高中描绘的'美好生活。但事实是,大学生活中有很多东西要学。
First, the major knowledge occupies the most important role. As a student, learning knowledge is their job, while many students focus on playing cellphone in the class, or just sleep. They lose interest in studying when they come to the free environment. Mastering the professional skill helps them to be competitive. The sad thing is that most of them can't realize it.
首先,专业知识占据着最重要的角色。作为一名学生,学习知识是他们的工作,而很多学生在课堂上玩手机,或者睡觉。当他们来到自由的环境后对学习失去了兴趣。掌握专业技能帮助他们提高竞争力,可悲的是,大多数人没有意识到这一点。
Second, as there is much free time, they can make use of it and gain the valuable experience. Students can join some clubs to develop more interest, or find part-time jobs. It is better than to stay in the dorm and play computer games all the time.
第二,由于空闲时间多,他们可以充分利用好这些时间,并从中获得宝贵的经验。学生可以参加一些活动来发展更多的兴趣爱好,或找份兼职工作。比呆在宿舍玩电脑游戏好多了。
A lot of students feel lost in the campus, because they don't plan campus life well. The things you learn will make you different in the future.
很多学生因为没有计划好校园生活在所以迷失了。所学到的东西会让你在未来有所作为。
People travel by plane, by train, by ship, by bus. To me, the best way of traveling on a summer vacation is to go on foot.
My preference depends on the purpose of the travel. On a summer vacation I travel to refresh myself and to see the countryside. When I use my feet and walk on a grass covered path along a river or among the hills I feel detached from the noise of the city and closer to the nature. And when I travel on foot I get more freedom. I can plan my own schedule. I can choose my own route. I can stop where I like. And I can see things and people that I might miss if I travel on a train or on a bus. net
When faster and more convenient ways for travel are becoming available, I still favor using my own feet. I get much pleasure from it. People travel by plane, by train, by ship, by bus. To me, the best way of traveling on a summer vacation is to go on foot.
yesterday i read a book the name of the book is《dr bethune》.
dr bethune was a famous doctor from canada. in 1938 he came to china. at that time china was at war with japan. he worked as a doctor in the chinese army and saved many soldiers’ lives. he worked very hard and became sick. dr bethune died in 1939. he was only 49 years old. he was a good man and we remember him today.
i think the book is very very good!
written by wu qingxiang
mar. 31
how to do research
——reading after a science paper
these days i am busy preparing my dissertation which is about web usage mining . i read some english papers and learnt much from them . and now i want to say something about a paper titled “web usage mining:discovery and applications of usage patterns from web data”.
this is the first english paper i read about dissertation and gave me great help .
this paper is a review about web usage mining. it introduced web usage mining in detail . although it is a little old for it was published in its contents are very useful today . it is organized according to the sequence of web usage mining and the six main parts are introduction which tells me what is web usage mining the sources and abstraction of web data the three steps of web usage mining taxonomy and project survey websift overview privacy issues . the third and fourth parts are most important . it had a list of existing project about web usage mining which i saw many times in other papers but this paper is the one creating this list . besides it has been referred for more then twenty times . as we all know that the higher the referred number is the more important the paper is so i consider this paper to be an important and successful one in this region.
in my opinion the success of this paper dues to three reasons . the first reason is the profound computer knowledge owned by the authors . web usage mining relates to many subjects such as artificial intelligence ontology semantic analysis but the most basic knowledge is computer science . the four authors are all professors of department of computer science and engineering in university of minnesota . for myself i am not major in computer science and i am not very good at computers so i feel a little difficult to understand technologies used in this region.
second they had read a large number of papers before they wrote this paper . there are fifty nine references listed after main contents . “stand on the shoulders of giants” this sentence tell us a truth : one can never successful all by oneself . and what’s more learn from others can save a lot of time and energy especially for us new learner . how to learn from others is a skill all of us should master but learning doesn’t mean copy or plagiary . other people’s knowledge and production is just our foundation upon this foundation we must have our own thoughts and creation. there are many remarks in this paper where referred other’s production.
third the authors had the experience of developing a web usage mining project . they don’t just engage in idle theorizing so their comprehension on this issue is greatly profound. they know what we may meet in a real project development and they know how to resolve them . after reading this paper i also read some other papers written in chinese . some of them are not based on real project and can not give useful resolution . websift is the name of system they developed which can be used to data mining and analysis .
i wrote this article not only because it gave me much help in preparing my dissertation but also because it tells me how to study and how to do research . honesty and preciseness are two essential making a researcher must have . hard-working is the necessary condition leading to success . this is just the beginning of my dissertation i should learn from these four authors both their knowledge and their attitude to study.
影片要追溯到上个世纪20年代的法属殖民地印度支那,声名狼藉的英国猎手艾丹·迈克拉里(盖·皮尔斯本以猎取象牙为生,但却在一次猎行动中发现了老虎一家,这对他们来说简直是一场意外的收获。在捕了幼虎戈莫和桑哈的父亲后,尽管幼虎的妈妈曾经两次试图救回她的孩子,但是残酷的命运还是将这对双胞胎虎兄弟分开了。
戈莫和桑哈,一个羞怯而温和,一个粗暴而凶猛。分开后凶猛的哥哥戈莫被卖到了马戏团,在那里,思乡病与被圈养在笼子中的生活掳走了戈莫的锐气。而温和的弟弟桑哈处境则稍好一些,成为了当地法籍长官尤因·诺曼丁那孤单的儿子拉奥的宠物与玩伴。诺曼丁打算把附近的丛林发展成旅游景点,但是这必须要得到他的上级(欧安·纽因的同意,于是这个家庭将桑哈送去培养成“斗士”参加比赛,取悦他的上级。
当两只老虎长大成熟后,它们再次相遇,只不过这一次他们不再是兄弟而是敌人。打斗中,彼此认出了对方。最后,他们合力逃出了牢笼,回到了丛林。但是它们却对当地的村庄构成了潜在的威胁,诺曼丁派迈克拉里去把它们掉,可当迈克拉里看见这两只老虎快乐地回到属于它们的那片丛林时,他再也不能下手,不能允许自己完成任务,于是,他把戈莫和桑哈留给了属于它们的命运,转身离去。
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