He has come to be recognized as an expert in the problem of overpopulation and food supply.
由于他的经验促使他终于成为了公认的人口过剩和食物供应问题的专家。
Such is human nature, that a great many people are often willing to sacrifice higher pay for the privilege of becoming white-collar workers.
许多人常常情愿放弃较高的薪水以换取做白领工人的殊荣,此乃人之常情。