坐在上面摇来摇去的叫做什么?

　　Louis Theroux: Gambling in Las Vegas is a TV documentary written and presented by Louis Theroux. He heads to Las Vegas, to reveal the world behind the myths of casino culture. Among the people he meets are two of the casino's 'high-rollers' and an employee who looks after them as well as a retired doctor who says she has gambled away $4 million in seven years. The programme was... (展开全部)