big dipper (switchback), up-and-down-hill track (switchback)
之字形路线
switchback【交】
暂无补充释义。
相关词条
big dipper (switchback)
SWITCHBACK
switchback
up-and-down-hill track (switchback)
SWITCHBACK amusement railways
switchback【交】
暂无补充释义。
big dipper (switchback), up-and-down-hill track (switchback)
big dipper (switchback)
SWITCHBACK
switchback
up-and-down-hill track (switchback)
SWITCHBACK amusement railways