单词give off
na.: 发散(水蒸气等)
网络: 发出；放出；释放
释放
泄出
散发;放出;发射出
教授
发出;分枝
v.emitradiatesend outdischargeexude
If the sun did not give off heat the temperature of the earth would fall almost to absolute zero.
假如太阳不放射热量，地球的温度几乎就会下降到绝对零度。
In Shanghai, some of the public buses begin to run on natural gas, which does not give off as much carbon dioxide as the petrol.
在上海，一些公共汽车开始使用自然气，这样就不会像石油那样排放那么多二氧化碳了。
They also give off the heat, and, of course, the warm air rises into the living areas of the houses.
他们还放出的热量，而且，当然，到房屋的居住区暖空气上升。
Brewers yeast will cause the dog to give off an odor that fleas do not like but you will not be able to detect.
酿酒酵母会引起狗给过一种气味，跳蚤不喜欢，但你将无法侦测到。
What the single guy could learn: It"s tough to pull off for some, but you could always give off the appearance of a bad boy.
单身男人要知道的事情：对某些人来说很难实现，但无论如何你总可以表面上扮成坏小子吧。
This might be because wit may give off the impression of not being serious or willing to commit to a long-term relationship.
这也许是因为风趣的外表会给人对待感情不认真或不愿意对长期感情关系负责的印象。
The nebulae, he said, were clouds of atoms and dust. They were not hot enough -- like stars-- to give off light.
他说，星云是由原子和尘埃形成的云。他们不像星星那么热，不能发光。
It has to be noticed that the air we breathe is already seriously polluted by the exhaust factories and vehicles give off.
必须注意的是：我们呼吸的空气已经被工厂和交通工具所释放的废气严重污染了。
The director replied, "Do you light a candle to make it more comfortable or to have it give off light? "
这位属灵班主任回答说：「你点燃蜡烛是要令它感到自在，抑或令它发出亮光？」
Some objects, like the sun, stars and the electric bulb give off their own light.
有些物体，如太阳、星星和灯泡，自身能够发光。