1. 肺   kidney   bone   blood   lung   Hint Half-n-half Clue   2. 脳   intestines   brain   blood   veins   Half-n-half Clue   3. 骨   lung   bone   throat   nerves   Half-n-half Clue   4. 筋、肉   stomach   throat   heart   muscle   Half-n-half Clue   5. 歯茎   lung   intestines   gums   heart   Half-n-half Clue   6. 脊柱、脊椎   bone   skull   liver   spine   Half-n-half Clue   7. 血、血液   blood   heart   kidney   lung   Half-n-half Clue