In 2010, the world's population was about 6.8 billion.
2010年，世界上的人口大约有68亿(bkBP0cr&=5a3GjG.w1o。
More than three billion people live in Asia now.
现在有三十多亿人口都生活在亚洲~k#^2D_&=[;xeDIIi^。
That's almost half of the world's population.
那几乎占了世界人口的一半oHrJ1&~0-K]lDd。
China has the largest population in the world, and about one fifth of the people in the world live in China.
中国是世界上人口最多的国家，全世界大约五分之一的人都生活在中国n%sBum9cDbtgynu,njy。
Because of the large population, there is less living space for each family.
因为人口太多，每个家庭的生活空间都变得更小xe9^,C@cG0zeq(。
And it is difficult for lots of people to find jobs.
很多人都很难找到工作U3jpkGs7BiQvqe。
At the same time, the large population has caused many other difficulties for the whole nation.
与此同时，人口太多还给国家带来了很多其他困难hZM6;SOq0].en05^。
For example, it is hard for China to supply energy and water to satisfy people's daily needs.
例如，中国很难提供人们日常生活所需的能量和水源g4DRk7g3zR^]ih2#-JO。
Most cities are more crowded than before, and the traffic is much heavier.
多数城市都比以前更拥挤，交通也比以前更拥堵gKb)v0LlyPx!fb0=[j%e。
Natural environments are becoming worse and worse.
自然环境变得越来越差_AqVLrrYmec;vCR。
The large population has been a serious problem.
人口过多成了一个很严重的问题)OPyloC;HV。
So far, our government has taken many measures to control the population.
目前，政府已经采取了很多措施来控制人口I6d!7YH(zD9l6iCUhU。
One is known as the one-child policy.
有一项是计划生育政策uA!3Fcf2F51fRmUes+。
It has worked well in controlling China's population.
它在控制中国人口方面颇有成效ECZe*q.CSq#8wf。
Thank to the policy, China is developing quickly and people's living conditions are improving rapidly.
多亏了计划生育政策，现在中国发展很快，人们的生活条件也大幅提升(-XkR5~7&+R!j。
However, the population problem is still serious in China.
但是，中国的人口问题依然很严重V#Yd_R-|F~JqOjmNJ。
We still have a long way to go.
我们任重而道远V[=4;~v()T@w]r=T。