游客止步 Out of Bounds 照常营业 Business as usual 闲人免进 No Admittance Except on Business;Staff Only 高压（电），生命危险！ Danger of Death-High Voltage! 不准用闪光灯拍照Flash photograph is not permitted 一 日游Day trip to. 旅游需要提前定票All tours require advance booking游客止步 Out of Bounds 照常营业 Business as usual 闲人免进 No Admittance Except on Business; Staff Only 高压(电)，生命危险! Danger of Death-High Voltage! 不准用闪光灯拍照 Flash photograph is not permitted 一日游 Day trip to . 旅游需要提前定票 All tours require advance booking