He fell asleep with the light off.
灯关掉的状态下，他睡熟了。
Some very important discoveries have been made by this technology, especially you consider that some objects in space give off radio waves but don't emit any light.
运用这项技术后，已取得了一些非常重要的发现，尤其是考虑到太空中的一些物体会发出无线电波，但不会发出任何光。
把那灯关了！
Very rarely will an Englishman try to anticipate the green light by moving off prematurely.
很少有英国人会试图提前离开，以预测绿灯的到来。
She reached over and flipped off the light.
她伸过手去关掉了灯。
Your arms and legs need protection from light bouncing off glass.
你的双臂和双腿需要保护，免受玻璃反射光的照射。
As he pulled into the driveway, he saw her bedroom light was off.
当他驶入车道时,他看见她卧室的灯关着。
Sometimes even a light touch on the face is enough to trigger off this pain.
有时甚至在脸上轻摸一下也足以引发这种痛苦。
He was convicted of assaulting a police officer but he got off with a light sentence.
他被定了个殴打警察罪，然而却得到从轻判处。
You don't need a light switch or a light bulb or an iPhone app to turn something on or off.
你不需要电灯开关、灯泡或苹果手机应用程序来打开或关闭某些东西。
Basically the light bouncing off all these objects close to earth is brighter than what's coming from the stars.
大体上，所有靠近地球的这些物体所反射的光都比来自恒星的要亮。
However using light to find one's own way around requires vastly more energy, since the eyes have to detect the tiny fraction of the light that bounces off each part of the scene.
然而，利用光来找到自己的方向极大地需要更多的能量，因为眼睛必须检测从场景的每个部分反射的光的极小部分。
If the light flashed on and off several times, the dolphins were supposed to press the left-hand lever followed by the right-hand one.
如果灯亮了又灭了好几次，海豚就应该先按左手的杠杆，再按右手的杠杆。
Please join us to light off firecrackers.
让我们一起来燃放爆竹除旧岁。
We keep on talking until the light is off.
我们一直聊到灯熄灭了。
It's bedtime. Let's turn off the light.
到就寝时间了。我们关灯吧。
Because of the way light reflects off the organisms, these phytoplankton create colourful patterns at the ocean surface.
由于光在这些浮游生物身上产生反射，它们在海洋表面形成了五颜六色的图案。
She had often carried test tubes containing radioactive isotopes in her pocket, remarking on the pretty blue-green light they gave off.
她经常把装有放射性同位素的试管放在口袋里，对试管里发出的漂亮的蓝绿光赞不绝口。
Turn off the light, Frank. It saves electricity.
把灯关了，弗兰克。这样可以省电。
Kate, don't forget to turn off the light when you leave the room.
凯特，你离开房间时别忘了关灯。
On the edge of the jacket, there is a piece of cloth that gives off light in the dark.
夹克边缘的一块布料可以在黑暗时发光。
These lights should give off as little blue light as possible.
这些灯应该尽量避免发出蓝光。
Many of the electronic devices we use every day, like our phones and computer screens, give off blue light.
我们每天使用的许多电子设备，比如手机和电脑屏幕，都会发出蓝光。
Living in a glare of our making, we have cut ourselves off from the light of the stars.
我们生活在自己制造的强光下，却把自己与星光隔开。
The light is on. When you leave, please turn it off.
灯亮着。当你离开时，请把它关掉。
I shook my shyness off and my body felt as light as a feather.
我摆脱了羞涩，感觉身体轻如鸿毛。
Fireflies give off flashes of light when they fly at night.
萤火虫夜间飞行时发出闪光。
He puts out his hand to turn off the light.
他伸手去关灯。
Turn the light off as you go out.; Please switch off the lights when you leave.
出门时请随手关灯。
Turn your reading light off when taking off or landing at night. Your eyes will be more adjusted to the dark if you have to leave the plane in a hurry.
如果你不得不匆忙地离开飞机，在晚上起飞或着陆时关掉你的阅读灯，这会使你的眼睛更适应黑暗。
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