世界人口在上涨。
The world population is expanding rapidly.
世界人口正在迅速膨胀。
The world population is growing every second.
世界人口每秒都在增加。
That is around one third of the world population.
即大约三分之一的世界人口。
Enough food is produced to feed the world population.
已经生产了足够的粮食供世界人口食用。
The Middle East has about 8% of the world population.
中东拥有大约世界人口的8%。
Youth make the most significant part of the world population.
年轻人是世界人口的最重要组成部分。
The approximate annual rate of world population is 2 percent.
世界人口每年的增长率约为2%。
This condition affects about . 05%-1% of the world population.
这种情况影响了大约世界人口的.05%-1%。
China has to feed more than one fourth of the world population.
中国要养活世界四分之一的人口。
The increasing world population will put a strain on food supply.
不断增长的世界人口将对粮食供应带来重负。
The world population is projected to reach over 9 billion by 2050.
2050年，世界人口预计将达到90亿。
Their population is a fifth of the current total world population.
他们的人口占世界人口的五分之一。
As we can see, the world population is growing rapidly day by day.
我们可以看到，世界人口正在快速与日俱增。
As we can see, the world population is growing rapidly day by day.
正如我们看到的，世界的人口正在日益迅速的增长。
The theme of this year's World Population Day is "Everyone counts".
今年世界人口日的主题是“人人都重要”。
The world population will pass seven billion by the end of this year.
到今年末，世界人口将超过七十亿。
The world population of chickens is about equal to the number of people.
世界上鸡的数量和人的数量大约相等。 。
This course will further explain and analyze this world population problem.
这门课程将会进一步解释并分析这一世界人口问题。
One of the most important facts is that the world population is growing fast.
其中一个重要的事实就是世界人口正在快速增长。
The world population is rising so quickly that the world has become too crowded.
世界人口增长如此之快，世界已经变得非常拥挤。
With the fast rising for world population, energy for building increased rapidly.
随着世界人口的持续高速增长，建筑体系消耗的能量急剧增加。
With the increase of the world population, our environment is getting worse and worse.
随着世界人口的增长，我们的环境变得越来越糟糕。
What's more, the great increasing of the world population also further aggravates the situation.
另外，世界人口的大幅增长也使情况进一步恶化。
Where in the world is the population getting smaller?
世界上哪里的人口越来越少？
Where in the world is the population getting smaller?
世界上哪里的人口越来越少？
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