英文關鍵字
adrenaline
adult
adventure
balance
blue
concentration
confidence
confident
courage
danger
dangerous
down
equilibrist
extreme
fear
freedom
funambulist
gap
height
high
highline
landscape
line
man
nature
outdoor
persevere
perspective
risk
risky
rope
ropewalker
safety
sky
slackline
slackliner
sport
standing
super
tightrope
tightropedancer
tricks
unique
unstable
walk
walker
white