浜辺
alone
answer
ashore
assistance
bottle
castaway
communicate
communication
desert
despair
desperation
float
glass
help
hope
hopelessness
island
letter
loneliness
lost
luck
message
nobody
ocean
optimism
remote
rescue
salvation
sand
sea
secret
shipwreck
slow
solitude
sos
stranded
suffering
support
survivor
time
water
wave