慢速英语:首批新冠病毒疫苗在西雅图市开始临床试验
日期:2020-03-17
Words in This Story
clinical – adj. medical or scientific work done with human beings
dose – n. a prescribed amount of medication
pneumonia – n. a disease of the lungs that makes breathing difficult
outbreak – n. the sudden occurrence of war or disease
2/3 首页 上一页 1 2 3 下一页 尾页