​U.S. President Donald Trump signed a proclamation to ban travel from certain countries on Wednesday evening, citing national security risks.

He noted that most SADC member states that previously benefited from the African Growth and Opportunity Act (AGOA), a U.S. trade program granting duty-free access to African countries, stand to lose ...

冰箱可以防止食物变质，但假如使用不当，它也完全有可能变成细菌的乐园。你留意过自家冰箱的冷藏室温度吗？事实上，很多时候人们都没有把冰箱设置到正确的温度。冰箱温度过高会带来食品安全隐患，导致食源性疾病风险增加，现在是时候检查一下冰箱的制冷设置了。你家的冰 ...