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.
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。