13% of in-flight medical emergencies—roughly four a day—are serious enough to require a pilot to change course.
飞机上医疗紧急情况中的13%——每天大约有四例——严重到需要飞行员改变航线。
But 13% of in-flight medical emergencies–roughly four a day–are serious enough to require a pilot to change course.
但机上医疗紧急情况中的13%——每天大约有四例——严重到需要飞行员改变航线。
When the town of Helena, in Montana, banned smoking for six months, for example, hospital admissions for heart attacks almost halved from seven to less than four a month.
例如，蒙大纳州的赫勒拿市禁烟6个月，每月心脏病患者住院数几乎减了一半，从7例降至不到4例。
Another choice is to cut school days to four a week.
另一种选择是将上学日减到一周四天。
There were six Levites a day on the east, four a day on the north, four a day on the south and two at a time at the storehouse.
17[和合]每日东门有六个利未人，北门有四个，南门有四个，库房有两个，又有两个轮班替换。
This problem is exacerbated by the rapid growth in the number of valuation firms - from three to four a few years back to more than a dozen now offering business valuation services.
随着评估公司数量的大规模增长，从几年以前的三四家到现在十几家都提供评估服务，该问题更加突出。
It's four A. M. You're tucked safely into a warm bed, savoring the last few hours of sleep before daybreak. And then, suddenly… (a rooster crows).
早上四点，你还在温暖的被窝里蜷着，享受着天亮前为数不多的睡眠时间。此刻却听到雄鸡打鸣……
Girls think they are cleverer, more successful and harder working than boys from as young as four, a study has found.
研究显示女孩们从四岁起就认为她们比男孩更聪明，更刻苦。
At the end of the Second World War, it took the British working man about six hours of Labour a day to feed a family of four; a figure which has now dropped by two thirds.
在第二次世界大战末期，英国工人每天要劳动六小时来养活四口之家；这个数字如今已经降低了三分之二。
The practical problem of “two supporting four” (a couple from a one-child families supporting four parents) is arising for the young.
对于中国的年轻人来说，他们面临“两个人扶持四个人”的现实问题，即夫妻俩都是独生子女，他们需要赡养四位老人。
Part four: a probe into the litigation process of embezzlement.
第四节：侵占罪的诉讼程序方面的探析。
In chapter four, a brief review of fast correlation attacks is given, then an attack to generalized self-shrinking sequences is discussed by combining with entropy analysis.
第四章简单介绍了当前一个主流的攻击方法—快速相关攻击，并结合熵分析对广义自缩序列的安全性进行了讨论。
This morning at the web 2.0 Expo in San Francisco, Jason Grigsby of Cloud Four, a mobile and web development firm, presented at a session about the mobile web's future.
今天早上，在旧金山的Web2.0展会上，手机网页开发公司CloudFour的JasonGrigsby在会议上做了一个有关移动网络未来的介绍。
Chapter Four: a generalization about three principles of mathematical logic in Satie's piano works Golden Section, Fibonacci Sequence, and Lucas Sequence.
第四章：概括萨蒂钢琴作品中的三种数理逻辑原则——黄金分割、斐波那契数列、卢卡斯数列。
I've been trying to finish the Rule of Four (a fiction book). It isn't the greatest literary work but my short attention span does horrify me. Perhaps, as some might suggest, I am still a child.
这一阵子我一直试著要看完《TheRuleofFour》这本小说，它不算是最好的文学作品，可是我真的被我短暂的专注力吓到了。
I've been trying to finish the Rule of Four (a fiction book). It isn't the greatest literary work but my short attention span does horrify me. Perhaps, as some might suggest, I am still a child.
这一阵子我一直试著要看完《TheRuleofFour》这本小说，它不算是最好的文学作品，可是我真的被我短暂的专注力吓到了。
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