慢速英语:Study: New Dengue Vaccine Could Cause Serious Illness(翻译)
日期:2016-09-09
Words in This Story
mosquito – n. a small flying insect that bites the skin of people and can spread disease
fever – n. high body temperature caused by illness
trial – n. a test to see if something works and is safe
data – n. information or facts about something
exposed – adj. not protected from something harmful
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