President Obama has been explaining his proposals on gun control to a public television audience. He's reiterated that what is proposed is a strengthening of background checks on those who buy guns in the hope that some needless killings can be averted. " There is a mass shooting. They get publicity every few months there is one they get national publicity, every day there's hope one should focus on streets around the country that we don't even hear about. That is not something that we can be satisfied with." ___________________. News from the BBC. 奥巴马总统在公共电视台上解释了他的控抢提议.他重声要加强对购买枪支人员的背景调查,这样避免不必要的杀戮."每隔几个月就会发生大规模枪案,甚至引起全国关注,而我们希望每天都有人关注那些从未听过乡村街道.我们对这此不能听之任之."_________________.英国广播公司新闻.