1. nei tai   inner tube   cable   wheel   lock   Hint Half-n-half Clue   2. lian zi   spoke   chain   tricycle   engine   Half-n-half Clue   3. [pai;pai] qi guan   lock   exhaust pipe   wheel   motorcycle   Half-n-half Clue   4. jiao;jue] [deng;deng]   pedal   tire pressure   seat   tire   Half-n-half Clue   5. lun zi   cable   wheel   motorcycle   helmet   Half-n-half Clue   6. lun fu   horn   scooter   spoke   motorcycle   Half-n-half Clue   7. wei zi   cable   seat   tricycle   exhaust pipe   Half-n-half Clue