一年一次的

Birds that live in harsh1 deserts and grasslands usually molt twice a year,in spring and in autumn.

生活在环境恶劣的沙漠和草原的鸟通常一年换毛两次，分别在春季和秋季。

In 2006 a devastating mudflow erupted near a site in Java where Lapindo Brantas, a Bakrie-controlled company, was drilling for gas.

在2006年一次毁灭性的泥流突然爆发，且恰好发生在爪哇附近，在那里Bakrie控制的一家公司Lapindo Brantas正在开采天然气。

"The highest-risk time for making a suicide attempt is within one year after a person first starts thinking about suicide. That happens 60 percent of the time or more across every country," Nock said.

Nock称，"自杀行为风险最高时是在第一次有自杀念头的一年之内，这些国家里大概60％的自杀行为都是发生在这一时间。"

He told VOA that his favorite phrase is "being an Olympian is not every four years, it is every day."

他告诉美国之音记者说，他最喜欢的一句话是"奥运选手并非四年一次，而是每天的工作"。

This provocative thesis may overstate Israel's heft in Washington and understate its fear of Iran's nuclear ambitions. But it is hard to grumble with Mr Parsi's conclusion that detente between America and Iran, of the sort that might have come about in 2003, would in fact make both Israel and the Middle East as a whole very much safer.

这一观点具有很大的争议性，它可能夸大了以色列对于华盛顿的重要性，也低估了以色列对伊朗核问题的忧惧程度，但既然Parsi在书的结尾处指出，美国与伊朗之间的关系如果出现2003年那次可能出现的缓和，事实上对以色列乃至整个中东地区的安全都十分有利，那我们又何苦对他的这一论点斤斤计较呢？！

With the use of Precipitable Water Vapor data from GPS, analyses were performed to study the features of water vapor transport in a heavy rain case that occurred during the late summer of 2004 in Shanghai.

本文应用GPS探测的可降水水汽资料Pwv对上海地区2004年一次夏末暴雨的水汽输送特征进行了分析。

In other words, Roosevelt's policy of digging holes failed to increase the unemployment rate during the prewar time.

所以从1929年开始一直到第二次世界大战之前，罗斯福这种挖洞的政策是失败的，没有增加就业量。

The highlight of international play is the quadrennial world Cup competition.

国际足球赛的最重要部份是4年一次的世界杯比赛。

The success of the quinquennial event was a sign that Byzantine studies are flourishing in almost every corner of the world.

这个五年一次的盛会的成功举办，标志着拜占庭研究在全世界几乎各个角落都欣欣向荣。

Mysterious bits of folklore that reappear every few years, to be told a new in one form or another.

它也许是那种隔几年就会改头换面地被重新传播一次的神奇的民间传说。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。