英文關鍵字
7th
animal
aqualung
australia
beautiful
beauty
behaviour
biology
blue
china
colours
conservation
day
diving
ecosystem
effects
environment
fish
fishing
flag
happy
hawaii
independence
indonesia
island
islands
jack
july
life
marin
marshall
micronesia
national
natural
nature
ocean
pacific
pair
reef
represents
school
schooling
science
sea
seascape
snorkeling
solomon
special
sunlight
swimming
travel
tropical
tropics
underwater
water
wildlife
zealand