英文關鍵字
asia
atlas
border
boundary
cartography
chart
china
contour
corona
coronavirus
country
delhi
design
disease
epidemic
fever
flu
geography
graphic
illness
india
indian
infect
infection
influenza
land
map
medical
medicine
microbiology
nation
national
outline
pandemic
pathogen
pathogenic
province
rendering
scientific
state
strain
treatment
virology
virus
viruses