英文關鍵字
alert
animated
animation
atom
attention
axis
background
badge
beware
black
bomb
button
cartoon
caution
chemistry
collapses
contaminate
continents
danger
design
disaster
dynamic
earth
energy
explosion
flame
globe
glow
hazard
hemisphere
icon
industry
its
looped
movie
moving
notice
nuclear
oceans
pictogram
planet
pollution
power
protection
radiation
radioactive
ray
reactor
research
risk
roentgen
rotates
safety
security
sign
symbol
toxic
video
warning
waste
white
yellow