一年一次的

Although the concept was proven sound and the 500 megawatt engine finished a successful test run in 1961年, no airworthy device was ever completed.

虽然这一概念被证明是健全和500兆瓦发动机完成一次成功的试运行，在1961年，没有架装置是有史以来完成。

This was brought into focus in 1989 when Ardis Krainik of the Lyric Opera of Chicago severed the house's 15-year relationship with the tenor.

最严重的一次发生在1989年，这一年，芝加哥歌剧院的经理阿迪斯·卡拉尼克和帕瓦罗蒂终断了长达15年的合约。

He wrote five plays, all of which were produced:"The Deed of Gift," a comic opera produced at the City Theatre, New York, in 1823;"Lafayette," a drama seen at the Park Theatre in 1824;"The Forest Rose," acted at the Chatham Theatre, New York, in 1825;"The Widow's Son," also seen at the Park, and "The King's Bridge Cottage," a Revolutionary drama.

他说5次，所有这些都是制作："契约的礼物"，一喜歌剧在城市剧院，纽约，1823年生产的，"拉斐特"一剧在公园剧院看到1824年，"森林玫瑰"行动，在漆咸剧院，纽约，1825年，"寡妇的儿子"，也看到了公园，以及"国王桥别墅，"一个革命戏剧。

We know that the solutions of quadratic, cubic and quartic can be expressed by radicals. As to the solution of the quintic which has became an issue for past two or three hundred years, it was not solved until 1832 a great young Mathematician of French named Galois who recommended group theory that proved a polynomial of degree 5 and over 5 can't be solvable by radicals.

中文摘要我们知道二次、三次及四次的方程式都可以用根式表示，至於五次方程式的解迟迟无法解决，这个问题持续了两三百年，直到1832年，一位法国青年Galois在其决斗前夕，在他的遗书中，这位伟大的青年数学家引进了群的理论，证明了：五次及五次以上的方程式，不可能有公式解。

In Georgia the first time you fail to provide an accurate address or register annually with the county sheriff to be photographed and fingerprinted, you face ten to 30 years in prison.

在佐治亚州如果你一次没有提供正确的住址，或是哪一年注册时没有向县长提供照片指纹，你都将面临着10年到30年的牢狱之灾。

Nostalgia does not come easily to Butt but, when asked to nominate a few highlights from that time, he said: Leagues, cups, trebles, obviously.

两个赛季前，也就是Butt在曼联的最后一年，他仅仅有12次联赛首发，比Kleberson和Djemba-Djemba多两次，但比Fletcher少5次。

This year is also a lesson for Chinese people to learn what " economy " is . Some people calculated that in a person's life , they will experience an averaeg of two financial meltdowns .

今年，也是中国人对&经济&这个词理解更为深刻的一年，有人统计过，人在一辈子当中平均会遇到一到两次大的金融危机，2008年我们遇上了，这一年，我们离&经济&两个字如此之近，原来它一直在不知不觉地影响着我们的生活。

Your pearl necklaces and bracelets should be professionally restrung by a jeweler every other year or once a year if you wear them often.

您的珍珠手链或项链应该由专业人员定期重新串珠修复，通常每两年一次，如您佩带较多，也可每年一次。

Money Money Money The first time I went to Shangri-la Hotel in the Lujiazui area of Pudong to work for Exxon Mobil as a simultaneous interpreter, I was at a loss about the location of this hotel, because at the time about 10 years ago this hotel was well-hidden behind the h

这是校内网上被浏览 80000 次的一篇文章，如果你看到这篇日志，请从头看到尾，相信你看完之后会深有感触！花开无声，岁月无痕，突然回首人生的旅途已经走了四分之一……我们这一辈也就是 96 ， 97 年开始上小学 02 年上初中 05 年上高中 07，0

Speculators, once more, are getting ready to deconstruct a European edifice, as they did in 1992, but this time it will be one on a bigger scale.

投机者再一次做好准备要摧毁欧洲这座大厦，就像他们在1992年做过的那样，不过这一次规模会更大。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。