In a given area, the worst will usually be over in four to six weeks as the virus rushes through a susceptible population, cases peak and infections decline with equal speed.
在既定区域，最坏的情况是，当病毒急匆匆地冲向易感人群后的四到六周内，病例数到达顶峰，接着匀速下降。
This surge has underpinned rapid economic growth, but is now ending. The share of the working-age population in East Asia will peak this decade and fall to 57% by 2050.
这促进了经济的增长，但现在这种好处要结束了：十年内该人群在东亚会到达顶峰，而到2050年会下降到57%。
China's population would fall by a staggering 450m from its peak in 2025, to 941m.
中国的人口数量将在2025年达到峰值，然后将令人震惊地减少4.5亿人口，降到9.41亿人。
World population is forecast to peak at 9.2bn by 2050.
预计世界人口到2050年将达到92亿的峰值。
Overall, curbing population growth could reduce greenhouse gas emissions; reducing peak population to roughly 8 billion, for example, could save 29 percent of expected greenhouse gas emissions.
总的来说，遏制人口增长能减少温室气体排放。例如，将峰值人口减至80亿，将能减少29%的预期排放量。
Reducing peak population to roughly 8 billion, for example, could save 29 percent of expected greenhouse gas emissions.
例如，将峰值人口减至80亿，将能减少29%的预期排放量。
Its population had dwindled to 3,000 from a peak of 15,000 in the 1970s.
人口数量从70年代的巅峰时期15000人下降到3000人。
Its population had dwindled to 3, 000 from a peak of 15, 000 in the 1970s.
人口数量从70年代的巅峰时期15000人下降到3000人。
Tourist sites in China can often be busier than a train at peak time thanks to the country's huge population.
因为中国庞大的人口，中国的旅游景点经常会比高峰期的列车还要热闹。
Population fluctuations of both species were erratic in respect to annual occurrence, the time of the peak density of fluctuations within years, and the hight of peak the density a given year.
根据两种田鼠种群波动周期性、波动峰值出现的时间以及特定年份峰值的高度等特征，证明两物种波动均具有不稳定性。
Between 1987 and 2007 the number of drivers during peak hours doubled, as the area's population rose from 2.6m to 5m.
从1987年到2007年，随着该区人口从260万增至500万，交通高峰期的司机数量也增加了一倍。
Tourist sites in China can often be busier than a commuter train at peak time thanks to the country "s huge population."
由于人口众多，中国旅游景区通常比高峰期的通勤列车还要繁忙。
Tourist sites in China can often be busier than a commuter train at peak time thanks to the country "s huge population."
由于人口众多，中国旅游景区通常比高峰期的通勤列车还要繁忙。
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