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    Behind the teaching building
    0:08

    Behind the teaching building

    How do you get on with your classmates
    0:08

    How do you get on with your classmates

    brightly and the breeze was blowing gently
    0:13

    brightly and the breeze was blowing gently

    I see， east west see
    0:09

    I see， east west see

    Finish the homework
    0:12

    Finish the homework

    Remember smoking can damage your health
    0:10

    Remember smoking can damage your health

    good way to keep healthy
    0:13

    good way to keep healthy

    Do not eat too much fat
    0:10

    Do not eat too much fat

    Because they contain all kinds of vitamin you need
    0:07

    Because they contain all kinds of vitamin you need

    Here are some advice for you to follow
    0:10

    Here are some advice for you to follow

    It is our duty to keep our environment
    0:09

    It is our duty to keep our environment

    They also give out a lot of smoke directly into the air
    0:07

    They also give out a lot of smoke directly into the air

    It is well-known that man
    0:11

    It is well-known that man