2017考博英语作文23类热点话题例句：人口增长、 人口质量
新东方在线考博频道整理了23类考博英语作文热点话题例句，希望考博生们背诵下来运用到考博英语作文中，提高考博英语作文分数。
人口增长、 人口质量、 小学生肥胖、 养老与老龄化、 性别比例
1、population aging; outdated and abandoned; to improve the living condition of the aging population ; to respect and appreciate the aged; to provide safety and happiness
2、the number of males outweighs that of females;the population growth is almost out of control, the humans to live is increasingly circumscribed.