单词：polyps
n. one of two forms that coelenterates take (e.g. a hydra or coral): usually sedentary with a hollow cylindrical body usually with a ring of tentacles around the mouth
单词：polyps 相关文章
New Non-invasive Colon Cancer Test Claims 94% Accuracy 新型检测非侵入性结肠癌准确度达94% According to the World Cancer Research Fund and the American Institute for Cancer Research, colorectal cancer is the third most common cancer worl
VOA标准英语2014年(九月)
Idiom: Make or break ( something critical ) Hit the book: Marine Organism Coral polyps Calcium Limestone Attach to Weird Coral reef
趣味青春英语
By Melinda Smith Washington 24 July 2007 President Bush recently (Saturday, July 21) had five small growths removed from his colon. The growths, or polyps, were found during a routine colon cancer scan. The growths were small and turned out to be ben
2007年VOA标准英语（七月）
Study Finds Removing Polyps Saves Lives Colon cancer normally starts with growths called polyps inside the intestine. Previous studies have shown that removing polyps can prevent colon cancer from developing. The new study, published in the New Engla
VOA标准英语2012年(二月)
By Melinda Smith Washington, D.C. 07 June 2007 For years, doctors urged women to take folic acid if they planned to get pregnant. Then researchers discovered the nutrient helped reduce the risk of a heart attack. But now a new study shows folic acid
2007年VOA标准英语（六月）
Where every plant and animal helps sustain the whole.The waste from parrot fish cements the reef. Stinging anemones provide a haven to the vulnerable. Even killers play their part, preventing a population explosion that would destroy this fragile eco
自然百科2011年
As a polyp grows, it puts up a wall of limestone around itself. And then it multiplies. Each polyp can produce thousands of offspring, which all work together to build a living fortress-- a coral reef. After just a few years, a single piece of coral
自然百科2011年
Supertasters Beware! You may have heard of supertasters. These are people who, it was discovered, are carrying around extra taste buds on their tongues, making the world of eating much more intense. Its not at all an unusual thing: the latest data su
英语听力文摘 English Digest
In the zoophyte branch, class Alcyonaria, one finds the order Gorgonaria, which contains three groups: sea fans, isidian polyps, and coral polyps. 在植虫动物门、翡翠纲中，有矾花这一目，这一目包含矾花、木贼和珊瑚三科。
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