英文關鍵字
19
animation
covid
health
high
quality
text
title
titlen
video
x19
xanimation
xbackground
xbanner
xchina
xchinese
xconcept
xcorona
xdanger
xdisease
xearth
xepidemic
xfever
xflu
xfont
xglobal
xicon
xinfect
xinfection
xmedicals
xmicrobe
xoutbreak
xpandemic
xpneumonia
xprevention
xprotection
xquarantine
xrespiratory
xscience
xsigns
xsymbol
xsymptom
xtext
xtitle
xtype
xtypography
xvaccine
xvirus
xwho
xyoutube