"Public healthandsanitation has been the single greatest improvement in our life expectancy," Grayson said.
“公共卫生与健康一直是增加我们预期寿命最大的促进因素，”格雷森说。
2
Awareness of healthandsanitation issues has been successfully raised through China's public education campaigns.
普兰特先生说：“中国通过群众教育运动成功地提高了人民对健康和卫生问题的认识。”
3
India's cities today are characterized by widespread poverty, poor healthandsanitation, crumbling infrastructure, environmental degradation and poor quality of life.