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。
Here you can see two workers who, between them, have just finished cutting three cartloads of golden brown macaroni stalks.
这里您可以看到两个工人,他们协力割下了3车金黄色的通心粉秸。