2015-09-02 Obama Hikes Melting Glacier to Highlight Climate Change
U.S. President Barack Obama hiked a melting Arctic glacier in Alaska Tuesday to bring attention to climate change. Mr. Obama…
VOA英语教学网 - VOA Learning English
一个让你免费在线学习VOA英语的好地方! 无须报名, 不收学费, 全年无休, 保证提高! (^_^)
U.S. President Barack Obama hiked a melting Arctic glacier in Alaska Tuesday to bring attention to climate change. Mr. Obama…