1·“佚”通“逸”公元前684年，齐国派兵攻打鲁国。
In 684 BC, the Qi army attacked the state of Lu.
2·在报告的684例中，有234例(34%)经实验室确诊。
Of the 684 reported cases, 234 (34%) were laboratory confirmed.
3·在9.11后，美股停止了数日的交易，9月17日股市重新恢复交易时，道琼斯指数大跌7.1%。
When trading resumed after the terrorist attacks, on Sept. 17, the Dow sank 684 points, or 7.1%.
4·麦纳麦巴林的首都和最大的城市，位于波斯湾沿岸，它是一个自由港，1971年成为这个国家的首都。人口108，684。
The capital and largest city of Bahrain, on the Persian Gulf. A free port, it became capital in1971. Population, 108, 684.
5·这份我们所知最古老、最完整的星图，可以追溯到公元649到684年，是于1907年在丝绸之路上的城镇敦煌发现的。
The oldest complete star atlas known, it dates to the years 649 to 684, discovered at the Silk Road town of Dunhuang in 1907.
6·方法：对114人6 84根颈部血管进行二维彩色多普勒探查，测量统计相关参数。
Methods 684 cervical blood vessels of 114 persons underwent two dimensional color Doppler detection thus giving relevant parameters.
7·虽然这只略低于2009年12月的603万亿美元，但是却远远低于2008年6月的未结算最高记录603万亿美元。
That is marginally below December 2009’s figure of $603 trillion, but far lower than the record $684 trillion outstanding in June 2008.
8·2006年11月30日至2007年3月12日，在肯尼亚共报告了684例裂谷热，包括155例死亡(病死率23%)。
From 30 November 2006 to 12 March 2007, a total of 684 cases including 155 deaths (case-fatality ratio, 23%) of RVF was reported in Kenya.
9·全社会消费品零售总额达到26，843亿元（3，234亿美元），实际增长10.2%。
Retail sales of consumer goods in the country totaled 2, 684 billion yuan （US$323.4 billion）, representing an actual increase of 10.2 percent.
10·方法对深圳市龙岗区684名食品从业人员进行了艾滋病知识、态度及行为的问卷调查。
A questionnaire survey was conducted among 684 foodstuff practitioners in Long Gang district of Shen Zhen on the knowledge, attitude and actions about AIDS.