人口增长也许是当今世界最大的挑战英文怎么说
问题描述：
人口增长也许是当今世界最大的挑战英文怎么说
答
Population growth maybe the biggest challenge in today's world.
答
Population growth is perhaps the biggest/greatest challenge in the world today 或者
Population growth may be the biggest/greatest challenge in the world today
答
Population growth currently may be the biggest challange to the world.