the ball
Good dog一只好狗！
I'm a good dog.我是一只好狗.
look at me.看着我.
I'm very good, 我非常的棒
as you can see.正如你所看到的那样
You say "sit'. I sit 你叫我“坐”，我就坐
That's it .那就是它
If you call,I get the ball.
如果你叫我的话，我就去拿球
You say "stay".I stay.
你叫"我待着别动"我就不动
That's that!那就是它！
But not if I can see a cat. 不过除了我看到猫的时候