1. hua [xing;hang;hang;heng;] [che;ju]   cable   tricycle   scooter   tire   Hint Half-n-half Clue   2. nei tai   pump   tire pressure   inner tube   pedal   Half-n-half Clue   3. lun tai   engine   tire   helmet   horn   Half-n-half Clue   4. jiao;jue] [deng;deng]   cable   sprocket   pedal   motorcycle   Half-n-half Clue   5. lun zi   seat   chain   handlebar   wheel   Half-n-half Clue   6. wei zi   exhaust pipe   seat   helmet   pedal   Half-n-half Clue   7. huan [chong;chong] qi   tricycle   shock absorber   exhaust pipe   valve   Half-n-half Clue