1. 脊柱、脊椎   spine   lung   kidney   bone   Hint Half-n-half Clue   2. 髑髏   intestines   throat   skull   brain   Half-n-half Clue   3. 歯茎   heart   bone   gums   skull   Half-n-half Clue   4. 脳   gums   throat   nerves   brain   Half-n-half Clue   5. 肝臓   liver   bone   lung   muscle   Half-n-half Clue   6. 心臓   skull   heart   gums   brain   Half-n-half Clue   7. 肺   throat   nerves   liver   lung   Half-n-half Clue