Second Lady Biden , Elementary school kids , Va. . 小學生 ， 維吉尼亞州 。

Amanda Lucier / The Viginia-Pilot / AP

Amanda Lucier / The Virginia-Pilot / AP

Amanda Lucier / The Virginia-Pilot / AP

Amanda Lucier / The Virginia-Pilot / AP
PhotoBlog - Elementary school kids in Virginia host Second Lady Biden http://photoblog.msnbc.msn.com/_news/2012/04/25/11397573-elementary-school-kids-in-virginia-host-second-lady-biden