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。
Perhaps in those days I was. Pierre and I did have a very good time at the ball. But that was the last moment of happiness in our lives. That night everything changed.
那时候,我也许是个漂亮姑娘。我和比尔在舞会上的确玩得很痛快。不过,那是我们一生中最后的幸福时刻。那天晚上一切都变了。