Sea (Từ vựng chủ đề về biển thông dụng nhất)
Sea
Ocean
Wave
Island
Harbor
Lighthouse
Submarine
Ship
Boat
Captain
Fisherman
Lifeguard
Seashore
Beach
Coast
Seagull
Whale
Shark
Dolphin
Octopus
Fish
Jellyfish
Sea horse
Seaweed
Coral
Coral reef
Shellfish
Clam
Starfish
Seal
Turtle
Crab