一定 yī dìng surely
到处 dào chù everywhere
口罩 kǒu zhào mask (surgical etc)
呼吸 hū xī to breathe
严重 yán zhòng serious
打喷嚏 dǎ pēn tì to sneeze
疹子 zhěn zi rash
症状 zhèng zhuàng symptom (of an illness)
过敏 guò mǐn allergy