COVID-19 vocabulary words 防疫單字卡 Page 3上一頁 outbreak (n) 爆發 contract (v) 感染 spread (n) 蔓延 點圖片,看下一張 & 點影片,聽發音 Page 5下一頁 After leaving this page, need to use 1 more coin to play audio Sorry! You don't have enough coins.