1. 飞机   train   airplane   bus   ferry   Hint Half-n-half Clue   2. 小船   boat   taxi, cab   train   van   Half-n-half Clue   3. 火车   bicycle   helicopter   train   ship   Half-n-half Clue   4. 出租汽车，小室   boat   bicycle   bus   taxi, cab   Half-n-half Clue   5. 卡车，卡车   bicycle   truck, lorry   helicopter   car   Half-n-half Clue   6. 搬运车   train   airplane   van   motorbike, motorcycle   Half-n-half Clue   7. 自行车   van   boat   bicycle   taxi, cab   Half-n-half Clue