young people who are concerned about overpopulation in the world.

担心世界人口过剩的年轻人。

Bavaria, like all the German regions, was by 1600 suffering from alarming overpopulation, causing food shortages.

与德国所有地区一样，到1600年时，巴伐利亚州饱受人口严重过剩和随之而生的食物短缺之苦。