英文關鍵字
driving
through
two-way
tunnel
double
solid
line
cylindrical
structure
bend
ride
carved
into
mountain
road
markings
careful
safe
when
car
moving
around
vehicles
turn
rolling
drive
sun
visibility
lighting
cars
vigilance
ahead
between
national
destination
trip
tunnels
single
carriageway
slowly
concrete
asphalt