off
1.That`s very important. Before you leave the lab make sure the electricity is turned off and the windows are shut. Finally, turn off the lights and lock the door. That`s all. Any other questions?
这很重要.你们离开实验室前.务必关上电源.关好窗户.最后把灯关掉.锁好门.就这些.还有什么问题吗?
2.But I've never jumped off anything in my life.The highest thing I've jumped off is my bed. I'm scared.
我这一辈子还没跳过任何东西.最高是从床上跳下来过.我很害怕.
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