1. 封印   octopus   oyster   lobster   seal   Hint Half-n-half Clue   2. 海豚   clam   starfish   octopus   dolphin   Half-n-half Clue   3. 鳗鱼   eel   seal   oyster   dolphin   Half-n-half Clue   4. 乌龟   oyster   turtle   shark   otter   Half-n-half Clue   5. 箭鱼   swordfish   eel   octopus   manatee   Half-n-half Clue   6. 鲸鱼   mussel   snail   eel   whale   Half-n-half Clue   7. 水母   lobster   starfish   otter   jellyfish   Half-n-half Clue