Mr.Obama and his wife, Michelle, have vowed to hold life as steady as possible for the girls, and are taking grandmother Marian Robinson to Washington to help.

• 奥巴马先生和他的妻子米歇尔，誓言要举行生活尽可能稳定的女孩，并正在采取的祖母玛丽安罗宾逊华盛顿的帮助。