只需要一个或两个步骤，把和立场的权利，在前面的你的宠物狗。
Take only one or two steps, turn and stand right in front of your dog.
研究人员让宠物狗在两个盘子中的食物之间做出选择——一个盘子中只有一片食物，另一个盘子中则有六片。
Researchers let pet dogs choose between two plates, one with a single piece of food and the other with six pieces.
看着我的两个女儿，两个漂亮、聪明的黑皮肤妙龄少女在白宫的草坪上与她们的宠物狗嬉笑打闹。
And I watch my daughters, two beautiful, intelligent, black young women playing with their dogs on the White House lawn.
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