in the developing country where a vastly expanded population is pressing hard upon 请问这句话的意思

题目

in the developing country where a vastly expanded population is pressing hard upon 请问这句话的意思
in the developing country where a vastly expanded population is pressing hard upon the limits of food, space and natural resources, it will be the first concern of government to place a limit on the birthrate, whatever the consequences may be.
expanded 在这里作何解释？谢谢。

答案

在这个发展中国家,快速膨胀的人口给有限的食物、空间和自然资源带来了巨大压力.政府应关注的首要问题就是限制出生率,无论后果如何.
expand表示膨胀、扩张的意思.用了过去式表示人口在过去已经膨胀的很厉害,导致现在压力巨大.