英文關鍵字
trichloroacetic
acid
molecule
nature
reaction
animation
element
looping
seamless
3d
background
atomic
ball
science
physical
scientific
conceptual
physics
rotation
overview
molecular
compound
composition
英文關鍵字
trichloroacetic
acid
molecule
nature
reaction
animation
element
looping
seamless
3d
background
atomic
ball
science
physical
scientific
conceptual
physics
rotation
overview
molecular
compound
composition