英文關鍵字
autumn
ball
capitates
east
fall
fruit
green
leaf
leaves
oriental
plane
planetree
seed
speedballs
spherical
stem
sycamore
system
tree
yellow
英文關鍵字
autumn
ball
capitates
east
fall
fruit
green
leaf
leaves
oriental
plane
planetree
seed
speedballs
spherical
stem
sycamore
system
tree
yellow