VOA慢速英语:Americans Split On US Role Overseas

poll – n. an activity in which several or many people are asked a question or a series of questions in order to get information about what most people think about something

global warming – n. the recent increase in the world's temperature that is believed to be caused by the increase of certain gases -- such as carbon dioxide -- in the atmosphere

benefit – v. to be helped

cyberattacks – n. an effort to damage computers and steal data