In my Basic dog Obedience DVD I explain the rules on how to introduce dogs to children.
在我的基本服从训练d VD中，我讲解了如何把狗儿介绍给孩子们。
This 70 minute DVD will teach you all the fundamentals and advanced techniques you need to know for shooting awesome sports photos using any digital SLR camera and a basic zoom lens.
这70分钟DVD将教你所有的基本要素和先进技术，你必须知道的体育照片拍摄令人敬畏使用任何数码单反相机和基本变焦镜头。
This 70 minute DVD will teach you all the fundamentals and advanced techniques you need to know for shooting awesome sports photos using any digital SLR camera and a basic zoom lens.
这70分钟DVD将教你所有的基本要素和先进技术，你必须知道的体育照片拍摄令人敬畏使用任何数码单反相机和基本变焦镜头。
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