Students travel the cheap lower deck and tourists the upper.学生坐廉价的下层舱，游客坐上层舱。We drove onto the lower deck of the ferry.我们把车开到了渡轮的下层甲板上。The lower deck is afloat.下层甲板浸满了水。Students travel on the cheap lower deck and tourists on the upper.学生坐廉价的下层舱，游客坐上层舱。