Daily glass of milk can reduce bowel cancer risk, study reveals 研究显示每天喝一杯 ...
Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...
Most rainforests too degraded to provide good habitats 多数雨林退化严重而无法为 ...
Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.
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美国之音6 天
缅甸内战进入第五年 反政府武装步步向军政府逼近
他说，弹药不足甚至帮助军政府扭转了另一个组织克伦尼民族保卫军(Karenni National Defense Force)在掸邦南部克耶邦取得的进展。 “他们不得不停止进攻 ...