Ramo suggests that if defenders have these black boxes then the U.S. aircraft would be helpless against enemy SAMs, and air superiority would be lost at stroke.
雷默暗示假如防卫者拥有这些黑匣子，那么美军战机对敌方的萨姆导弹将无能为力，空中优势也将转瞬即逝。
The analysis showed that the mean age at stroke onset was 68.6 years (SD, 12.0). Nearly half (48.3%) of the study subjects were women, 36.3% had mood disorders, and 75.9% had ischemic strokes.
分析结果显示，卒中发病的平均年龄为68.6岁（标准差为12.0）。在所有研究对象中，几乎半数（48.3%）为女性，36.3%具有心境障碍，且有75.9%发生了缺血性卒中。
Church bells pealed at the stroke of midnight.
午夜时钟一敲响，教堂的钟声便一声接一声地响起来。
They threatened to cancel the whole project at a stroke.
他们威胁要一下子砍掉整个项目。
At the first stroke it will be 9 o'clock exactly.
等到钟敲第一下时就是9点整。
At the time, his appointment seemed a stroke of genius.
当时，他的任命似乎是天才之举。
They arrived at the village at the stroke of five.
大钟刚刚敲过五点的时候，他们到达了那个村庄。
It's unbelievable that they finish all the tasks at a stroke.
令人难以置信的是，他们一举完成了所有的任务。
"We are not prepared," said they, "to stay with a man who kills seven at one stroke."
他们说：“我们没准备好和一个一下子打死了七个人的人一起共事。”
It might be wrong to expect that our world would be saved at one stroke with some miraculous technology.
指望一些神奇的技术能一下子拯救我们的世界，这可能是错误的。
At the stroke of midnight on New Year's Eve, everyone cheered to welcome the new year.
除夕午夜十二点整时，大家都欢呼着迎接新年的到来。
Three invading battleships were sunk at one stroke.
3艘入侵军舰被一举击沉。
People can compose individual characters relatively easily by building them up a stroke at a time.
人们可以将这些笔画做简单的组合来得到一个汉字。
The average age at which American women have a first stroke is 72; Happy's was at 105.
美国妇女第一次中风的平均年龄是72岁，而Happy是105岁。
Those with vascular depression may have, or be at risk for, co-existing heart disease or stroke.18.
血管型抑郁症患者，或可面临共病心血管疾病或中风的危险。
Never, though, have any of my very best ideas come to me all at once in anything resembling a stroke of genius.
从来没有，不过，有我最好的想法来找我的任何一次都在类似的天才之举什么。
Though such actions will not resolve anything at a stroke, they would over time strengthen moderates in both camps.
虽然这样的行动无法一举解决任何问题，但会延长时间，增强双方阵营的温和势力。
The bright return stroke travels upward at around half the speed of light, and is too fast to capture in more than one image.
闪亮的回击以光速的一半速度上行传播，由于它的速度太快，在一张图象中不能捕捉到这一过程。
A proposal like this could transform a miserable jobs picture into a tolerable one, at a single stroke.
一个像这样的建议会把一幅悲惨的工作图景改变成为一幅可以忍受的画面，只需一击而已。
"I do not accept that cars that are sold in France are built abroad," he declared this week, at a stroke torpedoing the principle of competition in the European single market.
他在本周曾宣称，“我不能接受在法国销售的汽车产自国外”，这一举破坏了欧洲单一市场中的竞争原则。
This person is at high risk for a devastating stroke.
这个人突发重度中风的风险非常高。
At a stroke, we can reduce 10% of our carbon emissions into the atmosphere by making Sunday a low-carbon day and at the same time make ourselves healthier and happier.
把星期天定为低碳日，我们就可以一下子削减10%排入大气的二氧化碳，同时也使我们自己更健康、更快乐。
At a stroke, that would narrow the budget deficit, encourage conservation, reduce oil imports, make renewable energy more competitive and reduce carbon emissions.
这措施可一石多鸟的缩减财政赤字、鼓励节约能源、降低石油进口、增加替代能源竞争力、和降低碳排放。
After two straight seasons in the 40s, Martin's 3-point stroke abandoned him last season, and he finished at 33.3 percent.
在连续两个赛季三分命中率超过40%之后，上赛季的马丁撞上了三分墙，仅仅投出33.3%的命中率。
Several ministries, including transport and environment, lost 5% or more of their planned budgets for 2010-11 at a stroke.
包括运输和环境等部门2010-11年度预算一下子就比原计划少了5%。
Several ministries, including transport and environment, lost 5% or more of their planned budgets for 2010-11 at a stroke.
包括运输和环境等部门2010-11年度预算一下子就比原计划少了5%。
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