英文關鍵字
accident
alcohol
asleep
attention
bored
car
closed
concept
confusion
danger
dangerous
drive
driver
driving
drowsiness
drowsy
drunk
exhausted
exhaustion
eyes
fall
fatigue
human
lack
lassitude
man
napping
overworked
person
prevention
risk
road
safety
sleep
sleeping
sleepy
sluggish
tired
tiredness
transport
travel
unhappy
unsafe
vehicle
weary
wheel
working
yawn
yawning