青云翻译

in most parts of the world, many students help their schools make less pollution (pollution). they join "environment clubs (Environmental Club)". in an environment club, people work together to make our environment clean. ?

In most parts of the world,many students help their schools make less pollution (pollution). They join "environment clubs (environmental Club)". In an environment club，people work together to make our environment clean.?

In most parts of the world, many students help their schools make less pollution (pollution). They join “environment clubs (environment club)”. In an environment club, people work together to make our environment clean. ?

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In most parts of the world,many students help their schools make less pollution (pollution). They join "environment clubs (environmental Club)". In an environment club，people work together to make our environment clean.?