单词：water repellent compound
单词：water repellent compound 相关文章
Many people regard summer as a time for relaxing, eating ice cream, and...ouch! I just got bitten by a mosquito! For centuries, people have been searching for effective ways to prevent mosquito bites. What they have been looking for is mosquito repel
常春藤生活英语
It seemed like a good ideabecause rivers and ponds in Bangladesh were contaminated with bacteria, Bangladeshis switched to wells. But soon after, in the early 80s, researchers realized those wells were harming Bangladeshis with a new poisonarsenic. T
Scientific American(十一)月
Promising Mosquito Repellent Announced美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 6
VOA标准英语2014年(一月)
Grammar Girl here. Today's topic is hyphens. On Monday afternoon Pat was watching the cable channel CNBC and called me over to the TV because the hosts were talking about hyphens. Yup, in the middle of a segment on the economy, they started talking a
英语语法 Grammar Girl
An area of the German city of Hamburg known for its nightlife is fighting back against drunken revellers who relieve themselves in the streets - by modifying the area's walls to pee back. 德国汉堡市一个以夜生活出名的地区近日开始对醉
英语新闻
South Korea's Olympic committee has unveiled special clothing to protect athletes from the Zika virus when they go to Brazil. The committee said the long-sleeved shirts and trousers would help protect the athletes from the mosquito-borne virus at the
cctv9英语新闻2016年