正文
VOA常速英语:Dengue Severity Depends on Prior Infection, Genetic Variation
词汇讲解:
1. discover vt.发现;碰见, 撞见;了解到, 认识到, 发觉
例句:They discovered the murderer to have run away.
他们发现凶手已逃之夭夭。
2. infection n. 感染;传染病
例句:Measles is an infection.
麻疹是一种传染病。
3. fatal adj. 致命的
例句:Her children's death is a fatal blow on her.
孩子们的死对她是致命的打击。
4. spread v. 传播;散布;蔓延
例句:The disease was spread in the small town.
这种疾病曾在这个小镇传播蔓延过。
5. complication n. (新出现的)困难, 难题;〈医〉并发症
例句:Complications set in, and the patient died.
病人因出现并发症而死亡。
6. unravel vt.阐明,澄清,弄清楚
例句:The legal tangle was never really unraveled.
这起法律纠葛从来没有真正解决。
7. endemic adj. 某地特有的;(尤指疾病)地方性的, 流行的, 难摆脱的
例句:The chest disease is endemic among miners in this area.
这种胸部疾病是流行于本地区矿工中的地方病。
8. exposure n. 暴露, 显露
例句:After only a short exposure to sunlight he began to turn red.
他在阳光下只晒了一会儿, 皮肤就开始变红了。
9. vaccine n. 疫苗;痘苗
例句:She takes a vaccine against influenza every fall.
她每年秋季接种流感疫苗。
10. modify v. 修改, 更改
例句:The heating system has recently been modified to make it more efficient.
暖气设备最近已进行了改造, 使其效率得到提高。
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