钢壳负荷开关

Pre-Listening Vocabulary turtle: a marine-dwelling (fresh or saltwater) hard-shelled reptile; used in some regions as a generic word for turtles, terrapins, and tortoises tortoise: a land-dwelling reptile with a dome-shaped shell streamlined: feature

发表于:2018-12-19 / 阅读(48) / 评论(0) 分类 Facts-事实

Pet turtles can be unsanitary. But Chinese soft-shelled turtles really up the ante on distasteful behavior. They perform a variation on urinationthrough their mouths. Most land-based vertebrates produce urine to get rid of water-soluble toxic waste,

发表于:2018-12-24 / 阅读(52) / 评论(0) 分类 Scientific American(十)月

Why Cashews Arent Sold In The Shell 为何腰果不带壳销售 Part of the fun of eating almonds or pecans is cracking the shell and getting the nut. But, some nuts, like cashews, are almost always sold shelled and roasted. Why arent cashews sold in

发表于:2018-12-28 / 阅读(27) / 评论(0) 分类 初学者听力文摘精选

A bus load of politicians were driving down a country road when all of a sudden the bus ran off the road and crashedinto a tree in an old farmer's field. The old farmer after seeing what happened went over to investigate. He then proceeded to dig a l

发表于:2019-01-16 / 阅读(101) / 评论(0) 分类 趣味英语

UNITED NATIONS, April 15 (Xinhua) -- A new polio vaccine will be rolled out next week to replace the one which protects against all three strains of wild poliovirus. It marked the beginning of the largest and fastest globally coordinated rollout of a

发表于:2019-02-05 / 阅读(46) / 评论(0) 分类 英语新闻
学英语单词