英文關鍵字
axis
balance
equilibrium
equipment
experiment
experimentation
metal
move
physicist
physics
pivot
round
sand
set
shadow
shaft
shiny
spindle
swinging
ticker
tool
英文關鍵字
axis
balance
equilibrium
equipment
experiment
experimentation
metal
move
physicist
physics
pivot
round
sand
set
shadow
shaft
shiny
spindle
swinging
ticker
tool