Prof Cheng agrees the Pisa results reflect a broad cross section.
程教授认为Pisa的测试结果能反映了大致情况。
However, Cheng and colleagues are not the only scientists with a theory.
然而，Cheng和他的同事们并不是唯一的一群对这个现象拥有理论解释的科学家。
They came to a house in which lived a man named Chen Cheng and his family. The whole family was crying.
他们来到一户叫陈澄的家中，见全家人正痛哭流涕。
It was a far cry from just a month ago, when no one even bothered to give Cheng a second look - let alone a piece of bread.
这简直是天壤之别，一个月之前，甚至没有人肯多看程一眼，更不用说给他一片面包之类的了。
What Cheng and co have started is a cat and mouse game just like those that plague the antivirus and spam filtering industries.
对于程和他的合作者来说这是一个猫鼠游戏，就像疫症和抗菌素、垃圾邮件和邮件过滤行业一样。
Zhun Jun said that his army was to attack the southwest part of Wan Cheng and then created a big display to mislead the Yellow Scarves Rebellion.
这时朱隽放出消息说要攻打宛城的西南角，并且大造声势以便蒙蔽黄巾军。
School gate one side constructs 21 square meter reception rooms. In the teaching area, the road surface hardens completely, each classroom building Lian Cheng a whole.
校门一侧建有一座21平方米的传达室。在教学区内，路面全部硬化，把每幢教学楼连成一个整体。
"It is a new form of strike - a very symbolic event," said Liu Cheng, a professor at Shanghai Normal University and an outside adviser in the drafting of the 2008 Labour law.
“这是一种新形式的罢工，一个极具象征性的事件，”上海师范大学教授刘诚表示，他曾在2008年《劳动法》起草过程中担任外部顾问。
We were dressed for train travel, not mountaineering: Liu Yang was in leather thigh-high boots; Li Cheng wore a white furry hat in the shape of a polar bear, PAWS reaching down to warm her chin.
我们这身打扮是来坐火车的，而不是来登山的：刘杨穿着长皮靴；李诚戴着一顶北极熊形状的抓毛帽子，北极熊的爪子还伸下来为她的脸颊御寒。
At the same time, Cheng describes the BRICS as a very loose group of countries that may find it difficult to forge consensus because of differing basic interests.
但与此同时，郑宇硕认为金砖五国是一个非常松散的组合，在基本利益上存在差异，因此很难形成重要共识。
However, they couldn't find a perfect place until Cheng became ill.
但是，直到程恩华患病，他们也未能找到一个满意的地方。
His hotel, the Cheng Pao, is already a popular stop for Chinese tour groups, but he hopes a new influx will increase occupancy rates above the current 60 percent to 70 percent.
他的旅馆，取名叫晨跑，已经是大陆旅游团喜爱的落脚点，但他仍希望有新的客流，能够使入住率从现在的60%提高到70%。
"This was popular because the writer put onstage the aspirations of a young woman," Professor Cheng said.
“这出戏大受欢迎是因为作者将一位少女对幸福生活的追求搬上了舞台。”郑教授说。
This was popular because the writer put onstage the aspirations of a young woman,” Professor Cheng said.
“这出戏大受欢迎是因为作者将一位少女对幸福生活的追求搬上了舞台。”郑教授说。
Cheng remembers a story he heard as a teenager.
程恩华回忆起在年轻时听到的一个故事。
Bed covers: Whenever she checks into a hotel, Ms. Cheng says the first thing she does is pull off the bed cover.
没用的床罩：郑志雯说，每次入住酒店的时候，她做的第一件事情就是把床罩扯掉。
The affiliate sold a piece of its stake in Cheng Da this summer, booking a tidy profit.
这个计划在这个夏季售出了它持有的部分辽宁成大的股票，登记了一笔可观的收益。
But if you say 'big risk,' that's definitely not appropriate, "says a representative at Liaoning Cheng Da's Dalian headquarters, Yu Zhanyang."
但如果你称之为'大风险'，那绝对不合适，辽宁成大大连总部的代表，余战阳(音)说。
Some analysts suggest the yuan could become convertible on the capital account by 2015, but Cheng sounded a wary note.
一些分析员指出，人民币将有可能在2015年之前，成为在资本账户上能够自由兑换的货币。但是成发出了警告。
By the statistics, Cheng stands a better chance than most. Wuhan University of Technology, although not one of the nation's "key schools, " ranks in the second tier.
尽管武汉科技大学不是国家重点大学之一，排名也属二流，但据统计，程晓辉比更多人拥有优势。
A friend of Cheng Guosheng said the "brother Sharp" photos he received on his mobile phone news resembled his brother who went missing years ago.
程国生的一个朋友在手机上接收到犀利哥的照片，认出他是几年前失踪的程国荣。
Cheng Piyi and Huang Guiqiong, a couple who lost their daughter, brought their 16-month son to Beichuan.
成辟颐和黄桂琼夫妇在地震中失去了女儿。他们带着自己16个月大的儿子回到了北川。
Zhao Cheng is a typical member of the post-90s generation.
南京男孩赵成，是90后的典型代表。
Zhao Cheng is a typical member of the post-90s generation.
南京男孩赵成，是90后的典型代表。
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