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<p lang="en" style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;hyphens:auto;text-align:justify;" data-flag="normal"><b>Course 8-21个狗狗行为解析</b></p><p lang="en" style="font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;color:#333333;font-weight:normal;text-align:justify;" data-flag="normal"><img data-key="0" alt="" src="http://image.xmcdn.com/group44/M05/95/55/wKgKjFsZgA6QkVGoAADVeHlmYzE315.jpg?op_type=4&device_type=ios&upload_type=attachment&name=mobile_large" data-origin="http://image.xmcdn.com/group44/M05/95/55/wKgKjFsZgA6QkVGoAADVeHlmYzE315.jpg?op_type=0" data-preview-height="102" data-preview-width="140" data-preview="http://image.xmcdn.com/group44/M05/95/55/wKgKjFsZgA6QkVGoAADVeHlmYzE315.jpg?op_type=4&device_type=ios&upload_type=attachment&name=mobile_small" data-large-height="549" data-large-width="750" data-large="http://image.xmcdn.com/group44/M05/95/55/wKgKjFsZgA6QkVGoAADVeHl...