网状滤器

365个英语简短小故事-335. The Vacuum Cleaner Filter(2)

But the HEPA filter for Olivers Vibe got dirty very quickly. And, it was not cleanableit was simply replaceable. When it turned filthy brown, Oliver went back to Target to buy a new filter. Oddly, Target sold the F15 belt for the Vibe, but not the fi

发表于:2018-12-11 / 阅读(69) / 评论(0)

365个英语简短小故事

Indian Scientists Invent Nose Filter to Protect Against Air Pollution

From VOA Learning English, this is the Health Lifestyle report. In parts of India, it is not uncommon to see people wearing a mask over their nose and mouth. The capital, New Delhi, has some of the world's dirtiest air. The pollution was a call for a

发表于:2019-01-03 / 阅读(65) / 评论(0)

2018年VOA慢速英语(一)月

经济学人49:清洁水源生命的银丝带

Science and Technology 科技 Clean water 清洁水源 Silver threads of life 生命的银丝带 A water filter that kills bacteria, rather than just removing them 新滤水器能够消灭细菌，而不单单是排除细菌 MORE than a billion peopl

发表于:2019-01-26 / 阅读(29) / 评论(0)

经济学人科技系列

第567期:男人爱上女人的过程, 其实和女人的颜值无关

长的丑还是美，和爱没关系 Reddit上有个女生的提问：妹子们，你们是怎么处理长得不好看这件事的？不少女生引用名言，如：美丽不是我的责任。这不是我活着的意义。我不是为了诱惑人才

发表于:2019-01-30 / 阅读(37) / 评论(0)

卡卡课堂早餐英语

蜘蛛 Spider

Two years ago, I saw a horrible movie, in the movie, the spider became a monster and ate people, from then now, I was afraid of spider very much. When I see the spider, I will cry out and try to run away. My parents explained to me that the spider wo

发表于:2019-02-03 / 阅读(287) / 评论(0)

英语作文

经济学人231:清洁水源 Clean water

Clean water 清洁水源 Silver threads of life 生命的银丝带 A water filter that kills bacteria, rather than just removing them 新滤水器能够消灭细菌，而不单单是排除细菌 MORE than a billion people lack clean waterand in most

发表于:2019-02-17 / 阅读(68) / 评论(0)

经济学人综合

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child welfare service

classical conductivity theory