1. 手刹车   handbrake   inner tube   spoke   wheel   Hint Half-n-half Clue   2. 把手   handlebar   brake   valve   seat   Half-n-half Clue   3. 排气管   wheel   spoke   seat   exhaust pipe   Half-n-half Clue   4. 链子   chain   tricycle   engine   pump   Half-n-half Clue   5. 滑行车   helmet   cable   horn   scooter   Half-n-half Clue   6. 缓冲器   tire pressure   brake   gear lever   shock absorber   Half-n-half Clue   7. 位子   seat   scooter   lock   pump   Half-n-half Clue