随着一声像茶壶煮开了水那样的微弱的叫声，水母开始下降。
With a thin scream, like a tea-kettle whistle, the medusa starts to descend.
那个比例在1999年达到市场顶峰，但却在2000年达到顶峰后开始下降。
That percent grew to the peak of the market in 1999 but after the peak in 2000 it began to fall.
我的成绩很快开始下降。
然而，随着广播和电视的出现，报纸发行量开始下降。
With the appearance of radio and TV, however, newspaper circulation (发行量) began to fall.
虽然一开始我觉得不舒服，但它给了我信心，并且随着我越来越健康，我的体重开始下降。
Though I felt uncomfortable at first, it gave me confidence, and I started losing weight as I got fitter.
但在2012年左右，这些指标开始下降。
研究人员还指出，在我们发现幸福感开始下降之前，在2013年出现最急剧的幸福感下降之前，经济衰退就已经出现了。
The researchers also note that the recession hit some years before we see the beginning of the wellbeing drop, and before the steepest wellbeing decline, which occurred in 2013.
SAT分数从1963年开始下降；今天，平均有30%的学生没有在四年内完成高中学业，这一数字在贫穷的城市社区达到了50%。
SAT scores began dropping in 1963; today, on average, 30% of students do not complete high school in four years, a figure that rises to 50% in poor urban neighborhoods.
在整个非洲地区，生育率开始下降。
团队士气开始下降。
在印度受灾的比哈尔省，洪水水位开始下降。
Water levels began to recede in India's flood-devastated state of Bihar.
而1890年之后，人均嚼烟消费量开始下降。
Per capita consumption of chewing tobacco declined after 1890.
公司间短期借贷利率已经开始下降，但幅度很小。
The rate at which companies can borrow over short periods is starting to fall, but only slightly.
其现在已经开始下降，并且有可能继续慢速下降。
It has now started to decline slowly, andis likely to continue to fall at a slow rate.
一旦信誉开始下降，将需要花费终生的努力来恢复。
And once the credibility factor starts going down; it would virtually take a life-long effort to restore it back again.
但是，当资产价格开始下降的时候，整个体系失效了。
But when asset prices started to fall, the whole system unravelled.
流量在午后开始下降，但仍远远高于平时的流量水平。
The traffic dipped going into the afternoon but stayed well above normal.
经过一天的劳作身体在这时最为疲倦，体温也开始下降。
Pressure on the body to sleep has been building all day and now peaks as body temperature starts to drop.
甚至目前在民调中领先的亚努科维奇的支持率也开始下降。
Even Mr Yanukovich, who now leads in the polls, has seen his popularity dented.
随着石油收益的下降，人口的增加，个人平均所得开始下降。
With oil revenues falling and populations growing, per capita income began to decline.
PC性能开始下降的时候，一些简单的技术就能令其大为改观。
When PC performance slows to a crawl, a few simple techniques can make a huge difference.
第二，商品价格已经开始下降，这将伤害出口商而不是帮助进口商。
Second, commodity prices are falling, which hurts exporters but helps importers.
只有电价增至三倍，用于照明的总耗电量到2030年才会开始下降。
Only if the price of electricity were to triple would the amount of electricity used to generate light start to fall by 2030.
一个半小时之后，我们开始下降，我们飞升的高度已经到达清晨的云彩。
An hour and half later and we begin our descent, having risen high enough to be inside the early morning clouds.
弗吉尼亚大学的一项新的研究报告说，我们的智力约27岁时开始下降。
New research out of the University of Virginia says that our mental abilities begin to decline around the age of 27.
弗吉尼亚大学的一项新的研究报告说，我们的智力约27岁时开始下降。
New research out of the University of Virginia says that our mental abilities begin to decline around the age of 27.
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