单词：low-severity
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Dengue Severity Depends on Prior Infection, Genetic Variation American and Nicaraguan scientists have discovered the reason why a second infection with dengue can often be much more serious, even fatal, than the first. Dengue is a viral disease sprea
VOA标准英语2011年(十二月)
今天我们要学的词是experimental. Experimental 试验阶段的。The House of Representatives rejected a Republican bill that would give terminally ill patients the ability to try experimental drugs. 美国国会众议院否决了一项议案，
英语单词荟萃
今天我们要学的词是exaggerate。Exaggerate, 意思是夸张，夸大。 He tends to exaggerate when talking about his accomplishments, 他谈到自己的成就时总爱夸大其词。北韩上周进行导弹试射，但导弹升空后一分钟就
英语单词荟萃
Anti-depressants are widely used to help relieve suffering. But after reviewing previous studies, researchers at the University of Pennsylvania may have hit on something that could change the way anti-depressants are prescribed. The researchers looke
VOA标准英语2010年(一月)
STEVE INSKEEP, HOST: Every year, more than 1 million children and adolescents sustain a concussion. The symptoms may vanish in days or last for months. And right now, doctors usually cannot predict how long the recovery will take. That could be chang
2017年NPR美国国家公共电台5月
GRE改革之后，新GRE词汇量减少20%，但在减少的同时，新GRE对词汇的考察也加大了一定的难度。新GRE词汇是整个考试的基础部分，具有重要地位。以下是2012新GRE词汇：asperity，希望能帮助各位考
GRE英语