"Sleep problems endanger health and quality of life for up to 45% of the world's population," according to the World Sleep Society.
世界睡眠协会称：“睡眠问题危及世界上45%的人口的健康和生活质量。”
The most important of all the great world problems which face us at the present time is the rapidly increasing pressure of population on land and on land resources.
我们现在面临的所有重大世界性问题中最重要的问题就是人口对土地和土地资源的压力正在迅速增长。
World population is growing at an unprecedented rate, and this increase in population only exacerbates these problems.
世界人口正在以一个前所未有的速度增长，而人口的增加又恶化了上述问题。
As a result, the population of the world is increasing, causing lots of problems.
因此，世界人口正在不断增长，导致大量的问题。
Third, as food and resources shortage are still serious problems around the world, a big increase in population will also pose lots of pressure to the world.
第三，整个世界范围内，粮食供应不足和资源紧缺仍是一个大问题，所以如果人口过多增长，对世界也是一个大的压力！
Rapid glacier-melt, sea-level rise and ocean acidification will become complex problems, Steiner says, in a world whose population is expected to grow to nine billion people by 2050.
施泰纳说，随着世界人口预计在2050年增长到9千亿，冰川快速融化、海平面上升以及海洋酸化将变成复杂的问题。
In a perfect world, an equal division among the world's population of both territory and resources would solve these two problems.
在一个按照世界人口平均分配土地和资源的完美世界，这两个问题都有可能得到解决。
The rapid rise in world population is creating problems for all countries on earth because there simply aren't enough resources.
世界人口的快速增长给各个国家造成了问题，因为没有足够的资源。
As a result, the population of the world is increasing, causing tots of problems.
其结果是，世界人口的不断增加，造成小孩的问题。
Objective Along with social population aging, transition of the medical mode, World health Organization thinks that more than 80% of the health problems of residents can be solved in the basic unit.
随着社会人口老年化，医学模式的转变，世界卫生组织认为居民80%以上的健康问题可以在基层解决。
The population problems are focused by all the people around the world.
人口问题自然受到全世界人民极大的关注。
The population problems are focused by all the people around the world.
人口问题自然受到全世界人民极大的关注。
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