英文關鍵字
2019
2021
accident
backdrop
beautiful
bio
blond
care
corona
coronavirus
cov
covid
danger
discovery
disease
dna
ecology
epidemic
experiment
fresh
freshness
happy
health
home
infection
influenza
isolated
lab
look
male
man
medicine
micro
ncov
outbreak
outdoor
outdoors
people
pollution
professional
protection
safety
sample
sars
scientist
situation
study
virus
wearing