英文關鍵字
avoid
background
brush
concept
conceptual
contamination
coronavirus
covid19
danger
disease
epidemic
flu
global
graphic
handwriting
handwritten
house
hurricane
illness
illustration
infection
influenza
information
isolation
letter
lettering
letters
message
outbreak
paper
phrase
presentation
prevention
protect
protection
quarantine
safe
safety
selfisolation
sketch
text
warning
watercolor
white