1. 鳟鱼   sardine   crab   trout   lobster   Hint Half-n-half Clue   2. 鲭鱼   sardine   fish   shellfish   mackerel   Half-n-half Clue   3. 虾   shrimp   crab   cod   tuna   Half-n-half Clue   4. 螃蟹   crab   shark   shrimp   shellfish   Half-n-half Clue   5. 金枪鱼   trout   tuna   sardine   salmon   Half-n-half Clue   6. 蛤蜊   clam   sardine   crab   shrimp   Half-n-half Clue   7. 沙丁鱼   trout   fish   lobster   sardine   Half-n-half Clue