Near half of Russia's roughly 640 billion U.S. dollars of gold and foreign currency reserves has been frozen, Russian Finance Minister Anton

尼日利亚近日被迫销毁超过100万剂已过期的阿斯利康疫苗。据报道，通过“新冠肺炎疫苗实施计划”从西方国家收到的疫苗运抵尼日利亚时仅剩4-6周的有效期，无法及时投入

你也许只是觉得今年的冬天比往年暖和了一点，但实际上全球变暖的危害远远超出你的想象。全球变暖会摧毁珊瑚礁，导致生物灭绝，造成农作物歉收，如今新研究发现，全球变暖还

When I was growing up, I had an old neighbor named Dr. Gibbs. He didn’t look like any doctor I’d ever known. He never yelled at us for playing in his yard. I remember him as someone who was a lot nicer than circumstances warranted.When Dr