英文關鍵字
metallophone
xylophone
man
sticks
music
little
instrument
metal
musical
play
hands
hand
musician
people
percussion
entertainment
sound
melody
small
education
person
performance
rhythm
beat
mallet
keyboard
equipment
learn
educational
marimba
school
preschool
yellow
home
study
drums
training
portable
professional
note
digital
key
keys