英文關鍵字
analysis
bacterium
biology
caucasian
chemistry
china
chinese
corona
coronavirus
costume
covid
covid2019
danger
disease
epidemic
fear
flasks
flu
girl
global
hand
health
healthcare
illness
infection
influenza
isalation
isolated
liquid
mask
medical
microbe
microbiology
millennials
model
pandemic
pharmacy
pneumonia
professional
protection
protective
quarantine
respirator
respiratory
sample
sars
selfisalation
sick
stop
suit
vaccine
virus
woman