1. 皮船   canoe   monorail   kayak   raft   Hint Half-n-half Clue   2. 巡洋舰   cruiser   kayak   sailboat   scooter   Half-n-half Clue   3. 独木舟   canoe   cruiser   kayak   glider   Half-n-half Clue   4. 故障搬运车，拖曳卡车   kayak   breakdown van, tow-truck   yacht   streetcar, tram   Half-n-half Clue   5. 单轨铁路车   canoe   subway   monorail   sailboat   Half-n-half Clue   6. 地铁   pickup truck, pick-up van   subway   glider   cruiser   Half-n-half Clue   7. 汽艇   jet plane   glider   sailboat   motorboat   Half-n-half Clue