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  1. Sewer System
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The Sustainable Development Goals Explained: Clean Water and Sanitation
2:42
The Sustainable Development Goals Explained: Clean Water and Sanita…
已浏览 18.6万 次2015年9月17日
YouTubeUnited Nations
SDG 6 - Clean Water and Sanitation
2:34
SDG 6 - Clean Water and Sanitation
已浏览 1.6万 次2020年5月27日
YouTubeOxford Global
Using behaviour analysis to improve water, sanitation and hygiene practices
4:40
Using behaviour analysis to improve water, sanitation and hygiene prac…
已浏览 5.4万 次2021年7月23日
YouTubeScience Animated
Access to Clean Water and Sanitation: A Guide To Global Issues | Global Citizen
2:14
Access to Clean Water and Sanitation: A Guide To Global Issu…
已浏览 8.9万 次2016年8月22日
YouTubeGlobal Citizen
Understand Goal 6: Clean Water and Sanitation (Secondary)
2:27
Understand Goal 6: Clean Water and Sanitation (Secondary)
已浏览 7.7万 次2019年8月22日
YouTubeParticipate
4.1 Introduction to Sanitation
5:27
4.1 Introduction to Sanitation
已浏览 5706 次2018年3月28日
YouTubeIntroduction to public health engineering in hum…
What is sanitation?
0:57
What is sanitation?
已浏览 4.5万 次2017年3月10日
YouTubeOxford Academic (Oxford University Press)
3:50
Sanitation: Toilet Talk - Public Health Series | Academy 4 Social …
已浏览 4099 次2021年9月22日
YouTubeAcademy 4 Social Civics
24:50
Sanitation Rules – Must-Know for Food Workers From SafetyVideos.…
已浏览 1145 次7 个月之前
YouTubeSafetyVideos.com
3:12
Water Sanitation and Hygiene (WASH) | A brief explanatory
已浏览 1.5万 次2021年7月2日
YouTubeThe Educated Panda
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