英语 英语 日语 日语 韩语 韩语 法语 法语 德语 德语 西班牙语 西班牙语 意大利语 意大利语 阿拉伯语 阿拉伯语 葡萄牙语 葡萄牙语 越南语 越南语 俄语 俄语 芬兰语 芬兰语 泰语 泰语 泰语 丹麦语 泰语 对外汉语
当前位置:主页 > TAG标签 > harmful
  • VOA慢速英语2010年-SCIENCE IN THE NEWS - Economic Conditi

    BOB DOUGHTY: This is SCIENCE IN THE NEWS in VOA Special English. Im Bob Doughty. BARBARA KLEIN: And, Im Barbara Klein. Today, we will tell about stress and its effects on human health. Stress is a condition resulting from mental or emotional tension....

  • VOA标准英语2010年-US Senator Warns of Canned Food Danger

    Health study finds high levels of harmful chemical BPA Zulima Palacio | Washington, DC 24 May 2010 A new study by a coalition of environmental health groups found that 46 out of 50 cans of food tested positive for high levels of BPA, a chemical used...

    共1页/4条
听力搜索