离开教室时，我们永远不要忘记关灯。
We should never forget to turn off the lights when we leave the classrooms.
汤姆，当你离开教室时，别忘了关灯。
Don't forget to turn off the lights when you leave the classroom, Tom.
凯特，你离开房间时别忘了关灯。
Kate, don't forget to turn off the light when you leave the room.
有多少次，你的母亲告诫你在离开房间时要随手关灯，或是不要在想着要吃什么时开着冰箱的门？
How many times has your mother told you to turn off the lights when you leave a room, or to close the fridge door while you decide what to eat.
我们可以节约用水，循环利用教科书，离开教室时随手关灯。
We can conserve water, recycle our textbooks, and turn off lights on leaving our classrooms.
他曾再三叮嘱我在离开时一定要先关灯。
He told me once again to be sure to put out the light before leaving.
你离开时请关灯好吗？
即使是非常简单的小事，如使用再生纸或离开房间时关灯，都会有用。
Even simple things like using recycled paper or switching off lights when you leave the room can help.
离开教室时应随手关灯，关好窗户和锁好门。
Students shall turn off light and lock windows and doors before they leave classrooms.
他说我离开时从不记得关灯。
我总是在离开房间或教室时记得关灯，关电视和电风扇。
I always remember to turn off the lights, the TV and the electric fans when I leave home or the classroom.
离开房间时记得关灯。
离开房间时关灯。在房间内使用节能灯。
Turn off the lights when you leave a room. Use fluorescent bulbs in your room.
离开教室时，别忘记关灯。我不记得以前见过他了。
When you leave the classroom, don't forget to turn off the lights.
多数人离开自家房间时都会本能关灯。
Most people instinctively turn off the light as they leave a room at home.
当你离开房间时，请记得关灯，不要忘记关掉淋浴，当我们洗完手时，请不要忘记关灯。
Please remember to turn off the lights when you leave the room and don't forget to turn off the shower when we finish washing hands.
当我离开房间时，我忘记关灯了。
当你离开时，请记住关灯。
当你离开时，请记住关灯。
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