aWhen is Family Day in Alberta?! 当是家庭天在亚伯大?![translate] aRolling speed 正在翻译,请等待... [translate] atout est foutu l 所有是foutu L[translate] a系统解剖学 System anatomy[translate] ato the world you may be one person,to me,you are my whole world 对世界您可以是一个人,...
Safe access to drinking water and sanitation is a human right and a key goal of sustainable development, which must also be achieved in rural areas. This work proposes and simulates the application of a conceptual model for a basic sanitation safety plan tailored for rural areas, called the ...