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。
This was later confirmed by naval official at the Ministry of Defiance after the Elkor had returned home.
这一说法在“埃尔科”号返航后得到的国防部一位海军官员的证实。