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- Population problem is a big problem. 人口问题是个大问题。
- How to Solve Population Problem? 如何解决人口问题?
- Population Dividend or Population Problem? 是人口红利?还是人口问题?
- We are discussing the population problem. 我们正在讨论人口问题。
- I am quite certain that the population problem will be eased. 我肯定人口问题会缓和的。
- The population problem may be the greatest one of the world today. 人口问题可能是当今最大的问题。
- The population problem may be the greatest one of the world. 人口问题可能是当今世界最严重的问题。
- The population problem may be the greatest one in the world today. 设计以下问题让各小组讨论
- She was absorbed with the country's population problem. 她在专心思考国家的人口问题。
- The extinction is really a retraction, although the numbers of some species are also dwindling due to human over population or toxic circumstances in the environment. 这种绝灭事实上是一种退出，尽管有一些物种的数量也正在由于人类的过度人口或者环境中的毒素问题而减少。
- Some have advocated such a procedure as a solution to the population problem. 有些人曾提倡把这一步聚作为解决人口问题的一项办法。
- Outage Algae microorganisms in the water over populate overpopulate because of the surpluses surplus nitrogen. 水中的水藻微生物由于氮丰富而过度繁殖。
- Algerm Algae microorganisms in the water over populate overpopulate because of the surplus nitrogen. 施过肥的农田放出的氨气是空气污染的一个原因。
- In one word,the serious drought in late 1920s led to the serious population problem in Suiyuan region. 总之,这一时期绥远地区的重大灾荒,引发了严重的人口问题。
- Algen Micro organism Algae microorganisms in the water over populate overpopulate because of the surplus nitrogen. 水中的藻类微生物非常密集因为有过多的氮。
- Algae microorganisms in the water over populate overpopulate because of the surplus nitrogen. 藻类微生物会因过剩的氮而在水中过量繁殖。
- China has only two alternatives in handling its population problem: to implement the family planning policy or to allow blind growth in births. 在中国，处理人口问题只能有两种选择：一是实行计划生育，使得出生的人都能健康成长，生活日益改善；或者盲目生育。
- Alger micro organisms Algae microorganisms in the water over populate overpopulate because of the surplus nitrogen. 藻类在水中摄取了大量的氧气。
- Algae micro organisms microorganisms in the water over populate overpopulate because of the surplus nitrogen. 因为大量氮肥使水藻类微生物在水中过量生长。
- The population problem of the Xibe nationality always is the significant component part of the research on the Xibe nationality's history. 摘要对于锡伯族的人口问题，历来是研究锡伯族历史链条中的一个重要组成部分。
