생각해보세요. 집으로 뛰어 들어가는 그 작은 소년을. 좋고 깨끗한 상수도 시설이 있을지 모르지만 더러운 손으로 상수도도 오염시켜버릴텐데요.
Think about it. That little boy who's running back into his house, he may have a nice, clean fresh water supply, but he's got dirty hands that he's going to contaminate his water supply with.