機器
遊び心のある
activity
adjusting
assembled
assembling
assembly
automation
battery
boy
casual
cheerful
child
childhood
computer
construction
control
creativity
education
electric
electricity
electronic
engine
engineer
engineering
equipment
fun
game
hands
hobby
kid
lab
laptop
learning
mechanical
mobile
motor
pc
play
playing
robot
robotic
school
science
smart
support
technician
technology
toy
vehicle