英文關鍵字
adult
bald
boat
bolt
broken
camshaft
check
cylinder
dirty
disassemble
engine
equipment
examine
filter
garage
gear
hands
indoor
intake
iron
job
lift
machine
man
mechanic
mechanical
men
metal
metallic
motor
part
people
repair
repairer
sailing
service
shaft
shiny
special
steel
tool
transport
transportation
turn
two
uniform
valves
vehicle
winch
yacht