Mr. Jones is a renowned international authority on the problem of overpopulation in developing countries.
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。
Though he was technically a prizefighter, Mendoza did much to change crude prizefighting into a sport,
虽然门多萨严格来讲不过是个职业拳击手,但在把这种粗野的拳击变成一种体育运动方面,他作出了重大贡献。