Two, debt. In 1994, the debt-to-GDP ratio of African countries was 130 percent, and they didn't have fiscal space. 第二件事，债务。在1994年，非洲国家债务对GDP的比例是130%，而且他们没有财政空间。 They couldn't use their resources to in
President's Radio Address THE PRESIDENT: Good morning. Americans from all walks of life are continuing to feel the effects of the financial crisis. In recent weeks, concerns about the availability of
It's the red circle, that's terrifying. No, really. Black holes really are the central mystery of our age, 这个红色的圈太吓人了。你在开玩笑。黑洞可谓是我们这个时代的中心之谜， because that's where the quantum world and the
Weekly Address: In the Face of Terror, We Stand as One (November 21, 2015) 奥巴马每周电视讲话：总统呼吁沉着冷静应对恐怖威胁 Good morning everyone.This past week we've seen the best and the worst of humanity.The heinous terro
