Plants in danger give off a sweet smell.
处于危险中的植物会散发出一种香味。
These lights should give off as little blue light as possible.
这些灯应该尽量避免发出蓝光。
The electric organ in its tail can give off electricity of 300-650 volts of electricity.
尾部的发电器官能发出300至650伏的电流。
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。
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。
Fireflies give off flashes of light when they fly at night.
萤火虫夜间飞行时发出闪光。
Many household products give off noxious fumes.
很多家用产品散发有害气体。
They give off a lot of greenhouse gases (especially CO2) into the air. This warms the earth.
它们向空气中释放大量温室气体（尤其是二氧化碳）。这使得地球变暖。
Nearly all astronomical objects in space emit radio waves, whether nearby stars, objects in far away galaxies, they all give off radio waves.
太空中几乎所有的天体都发射无线电波，无论是附近的恒星，还是遥远星系中的天体，它们都会发射无线电波。
If plastic and rubber are burnt, they'll give off poisonous gases.
要是塑料和橡胶被焚，就会放出有毒的气体。
Many flowers give off a nice smell.
许多花朵都会散发出香味。
These fuels give off heat when they burn.
当这些燃料燃烧时释放出热能。
Those flowers look pretty but don't give off a nice smell.
这些花看似漂亮，但是气味并不好。
Consumers dislike the "cold" light they give off and their poor lifespan.
消费者对它所发出的“冷”光也并不买账。而对其使用寿命较低也颇有微词。
Apples give off a natural gas called ethylene that can wilt, spot, or rot other food.
苹果散发出的天然气体被称为乙烯，这可以使其他的食物枯萎，出现黑斑或腐烂。
That's because our bodies give off complex aromas, some too faint for a human nose.
人体会散发许多种不同的味道，这些味道中的某一些对于人类的鼻子来说太微弱了。
All bodies, no matter what their temperature, give off radiation in the form of electromagnetic waves.
一切物体，不论其温度高低，均要放出电磁波形式的辐射。
What's left over in the core, the radioactive material, will continue to give off heat for a long time.
留在核心内的放射性物质将在很长一段时间内持续放热。
Fireflies are winged beetles and give off a green luminous glow from chemicals in their lower abdomen at night.
萤火虫属于有翼甲虫类，在晚上它们通过腹部的化学物质放出绿色光亮。
This causes the leaves to give off a red glow, lighting the road for passersby without the need for electric power.
这能使叶子放出红色光晕，为行人点亮道路而无需耗电。
When neutrinos interact with electrons or nuclei of those water or oil molecules, they give off a flash of light that sensors can detect.
当中微子与那些水分子或油分子的电子或原子核相互作用时，会发出传感器可以检测到的闪光。
L Glowing nebulae are named because they give off a dim, red light, as the hydrogen gas in them is heated by radiation from nearby stars.
l有一种星云叫亮星云，它们发出暗淡的红光，这种红光是因为构成星云的氢气受到附近星体的射线激发而发出的光线。
The hat and sunglasses give off that 'A-list' whiff, while her Alexander McQueen scarf, zingy Chanel bag and boots smarten up her black jeans.
帽子和太阳镜散发出一流名品的气息，亚历山大·麦昆头巾、极漂亮的香奈尔手袋、靴子为她的黑色牛仔裤增色不少。
Plug-in electric hybrids give off less exhaust than gas guzzlers. And when they're running on battery power, they generate no fumes at all.
插电式混合动力汽车比单纯汽油动力汽车的废气排放量更少，尤其是当他们使用电源运行时，完全不会产生废气。
Think about a light bulb; if you apply a current, the filament gets hot and begins to give off light of different colors - red then yellow then blue.
试想下灯泡，如果接通了电流，灯丝会变热继而发出不同颜色的光-从红到黄再到蓝色。
When the sun goes down the solar trees will return to their original position to give off a full spectrum of light to the street and pedestrians below.
日落后“太阳树”会回复到最初的位置，发出全光谱光线，为下面的街道和行人提供照明。
When the sun goes down the solar trees will return to their original position to give off a full spectrum of light to the street and pedestrians below.
日落后“太阳树”会回复到最初的位置，发出全光谱光线，为下面的街道和行人提供照明。
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