be dog tired

If they don't have enough activity to expend their energy, they take it out on your favorite couch or your designer shoes. With bootcamp, your dog is too tired to be bad.

如果它们没有足够的活动来释放自己的精力，就会在你的沙发或名牌鞋上撒野。

Night comes and goes. Dog's thick fur keeps him warm. But Dog is wet and tired and hungry. And he is scared. Don't be scared, Dog!

天黑了，天又亮了。小狗厚实的皮毛保持着它的体温。可是它又湿、又累、又饿，它还很害怕。别怕，小狗！

When training is fun, the reward is high enough in value and the dog is not tired the time can be extended.

如果训练是有趣的，奖励有足够高的价值，狗也不感到累，时间就可以延长。