1. trigonometry   san [jia;jiao;jue] xue   xin li xue   wei ji [fen;fen]   zhe xue   Hint Half-n-half Clue   2. geometry   zhi wu xue   [ji;ji] [he;he]   xin li xue   wu li   Half-n-half Clue   3. chemistry   [de;di] li   [hua;hua] xue   li shi   dai [shu;shu;shuo]   Half-n-half Clue   4. calculus   [hua;hua] xue   wu li   zhi wu xue   wei ji [fen;fen]   Half-n-half Clue   5. geology   [de;di] zhi   tian wen   [ji;ji] [he;he]   [hua;hua] xue   Half-n-half Clue   6. zoology   li shi   dong wu xue   [hua;hua] xue   zhi wu xue   Half-n-half Clue   7. astronomy   wei ji [fen;fen]   tian wen   dong wu xue   zhe xue   Half-n-half Clue