That's because very large animals have a slow rate of reproduction, so all you have to do is remove a few young females from the herd, and you can, fairly quickly, significantly reduce the population.
那是因为大型生物的繁殖速度十分缓慢，所以只要除去象群中的几头年轻的母象，它们的数量就会大幅的下降。
Few at the Canterbury summer school think they would have considered teaching without that approach: the standard one-year postgraduate course is, they say, "too slow", "too theoretical" and "boring".
坎特伯雷暑期学校的一些人在考虑不用那种方法来教：他们表示一年级研究生的课程“太慢”、“理论性的”以及“乏味的”。
Mr Mubarak has been slow to respond throughout the crisis, but his few appearances have been cleverly pitched.
穆巴拉克在整场危机期间应对颇为迟缓，但他为数不多的几次露面却定位巧妙。
Even missing just a few nights’ sleep, or not getting enough uninterrupted sleep, can slow you down and sour your mood.
即使失去了一些晚上的睡眠，或者没有得到足够的不被打断的睡眠，都会让您反映慢下来并且心里很沮丧。
Even missing just a few nights' sleep, or not getting enough uninterrupted sleep, can slow you down and sour your mood.
即使失去了一些晚上的睡眠，或者没有得到足够的不被打断的睡眠，都会让您反映慢下来并且心里很沮丧。
But the slow trains on those lines have been taken out of use, giving people few choices. As a result, the highways were clogged and more people rode long-distance buses.
但那些线路上的慢速列车又被淘汰，致使人们的选择空间减小。
That is all I ask. To slow down, if even for a few minutes to be with me.
这就是我唯一的请求。请你放慢生活节奏，哪怕只花几分钟跟我在一起。
If the thought experiment above took only a few minutes, could you actually take an hour to slow down?
如果上面这个想法的实验花费了几分钟时间，你是否会实际花上一小时去实现慢下来？
Keeping your eye on a few resource Settings also ensures that scripts don't hog resources and make the system slow for everyone else.
密切注意几个资源设置也能确保脚本不会浪费系统资源，不会减慢系统处理其他任务的速度。
After a few hours on my own, I started hallucinating and caught myself yelling. My heart rate got really slow and it was hard to breathe.
独自在海上呆了几小时以后，我开始产生幻觉，大喊大叫，感觉心跳得很慢，呼吸也变得困难起来。
The developments could usher in a new age of high-speed computing in the next few years for home users frustrated with slow-running systems.
这一技术标志着在未来数年里，电脑家庭用户将迎来电脑高速运转时代，将不再因低速运转系统而受挫。
So if it's been a few days since you hit the gym, there may be a way to help slow down the damage from not exercising: some red wine.
所以，如果你上次去健身已经是很久以前的事了，那么要缓解不运动带来的伤害，这里有一个办法：喝一点红酒。
It may get off to a slow start, since it has not yet signed up many cable and satellite distributors. But its creation points to one of the media business's few bright spots.
尽管新频道尚未同太多有线电视和卫星电视公司签订节目播出合同，开通初期的运营仍较为缓慢，但这一新的做法却显示出了当前传媒产业中为数不多的一个亮点。
Though they seem to creep along at impossibly slow speeds, in geologic time glaciers are relatively fast, powerful landscape artists that can carve out valleys and fjords in just a few thousand years.
尽管它们的变化速度似乎缓慢的不可思议，但相对于地质时期来说，冰川是个快速、强大的雕刻艺术家，仅在数千年时间内就雕刻出了大量的山谷和峡湾。
In Belgrade, the mood is bleak. Serbs have tasted defeat many times over the past twenty years, during the slow and painful dismemberment of Yugoslavia, but few moments will hurt as much as this one.
而在贝尔格莱德则是一片萧瑟的气氛，经历过漫长而痛苦的前南解体，塞尔维亚人近二十年来屡尝败果，但这次的打击真是太大了。
Changes are beginning to appear and there is a potential for explosive changes, effects that would be irreversible, if we do not rapidly slow fossil-fuel emissions over the next few decades.
气候变化已经迫在眉睫，如果我们不能在将来的几十年中迅速减少化石燃料的排放，它可能将带来巨大且无法逆转的影响。
Over the next decade, China's annual growth will slow from the 10%-plus pace of the past few years to perhaps 7%-still one of the fastest rates in the world.
或许在未来十年，中国的年增长率从过去几年的10%以上放慢到7%左右——仍是世界增长最快的国家之一。
But the truth is I still begin every email with the line "Sorry to be slow replying, it has been exceptionally busy over the last few days".
可事实是我依然在每封电子邮件的开头写道“抱歉未能及时回复，最近几天一直非常忙碌”。
By throwing in every military thing at its disposal, Israel might slow by a few years Iran's progress towards acquiring the bomb.
以色列竭尽所能采取军事手段可能会将伊朗获得核弹的时间延缓几年。
Page says that if researchers keep watching Cas A for a few decades, they should see the cooling slow down as all the neutrons pair up and extra neutrino emissions fade.
Page说如果研究人员们继续观测Cas A数十年，他们将看到随着所有中子都成对和额外中微子发射的减少，冷却将减慢。
Step 3. Start the download — it may be a bit slow-going or require a few tries.
第三步，开始下载-这步可能有点慢或需要多次尝试。
Step 3. Start the download — it may be a bit slow-going or require a few tries.
第三步，开始下载-这步可能有点慢或需要多次尝试。
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