Mr.Jones is a renowned international authority on the problem of overpopulation in developing countries, and he has graciously consented to speak to us on that subject tonight.

 
  • 琼斯先生在发展中国家人口过剩问题方面是声誉卓著的国际权威,承蒙他同意,今晚他将就这一专题演讲。
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