1. valve   fa men   lian zi   kui jia   kou lian chi lun   Hint Half-n-half Clue   2. tire   fa men   san lun [che;ju]   beng pu   lun tai   Half-n-half Clue   3. pump   beng pu   la ba   lun zi   fa men   Half-n-half Clue   4. wheel   lun zi   wei zi   shou [sha;cha] [che;ju]   lun fu   Half-n-half Clue   5. engine   lun tai qi [ya;ya]   huan [chong;chong] qi   lun zi   yin qing   Half-n-half Clue   6. tricycle   lian zi   la ba   lan sheng   san lun [che;ju]   Half-n-half Clue   7. pedal   hua [xing;hang;hang;heng;] [che;ju]   lun fu   jiao;jue] [deng;deng]   la ba   Half-n-half Clue