英文關鍵字
bridge
channel
city
climate
coastal
concrete
construction
critical
crossing
current
danger
deadly
deep
destruction
devastating
dirty
disaster
element
environment
fast
filling
float
flood
green
horror
level
mark
melting
mouth
moving
mud
muddy
mudflow
nature
old
outdoors
pollution
pond
power
powerful
problem
risk
river
scary
spring
stream
swamp
travel
vibration
water
weather
wet
zone