As you've probably experienced firsthand, some mosquito species have a real taste for warm, human blood. So much so that if you raise them on it the lab, they'll accept no substitute. Fortunately, I don't get major reactions at all. Brad Main is a mo

发表于:2018-12-24 / 阅读(63) / 评论(0) 分类 2016年Scientific American(九)月

ROME, Dec. 3 (Xinhua) -- Italy lacks the necessary energy(能量,活力) and strength for an economic revival while unemployment and poverty are on the rise, warned a report issued Friday. The 44th edition of the Censis think tank social survey, the

发表于:2019-01-19 / 阅读(85) / 评论(0) 分类 英语新闻

In Africa's battle against malaria, two low-tech tacticsinsecticides and bed netshave done a decent job killing off mosquitoes. But it's mainly one species that's been affected. That's a species called Anopheles gambiae, sometimes called the African

发表于:2019-01-20 / 阅读(69) / 评论(0) 分类 2016年Scientific American(八)月

GUIYANG, Jan. 11 (Xinhua) -- Over 570,000 people have been affected in the continuing freezing weather in southwest China's Guizhou Province, said local authorities on Friday. A new round of freezing rain and snow has fallen on most parts of Guizhou.

发表于:2019-02-04 / 阅读(58) / 评论(0) 分类 英语新闻

宾至如归 just be at home; feel at home 天堂之旅 a trip to the paradise; explore the paradise 人迹罕至 The Unbeaten Track 远离尘嚣 a true departure; an escape from the bustling 全新感受 a novel experience 耳目一新 a new perspec

发表于:2019-02-17 / 阅读(20) / 评论(0) 分类 实用英语

You might not think there would be that many people in the world prepared to devote lifetimes to the study of something so inescapably low key, 你或许会认为,世界上不会有多少人愿意花毕生的心血来研究那个不起眼儿的东西

发表于:2019-02-21 / 阅读(75) / 评论(0) 分类 万物简史