It offers the possibility of a double benefit—discouraging harmful activities, while also providing the government with revenue.
它提供了一种双重效益的可能性，既能阻止有害活动，又能为政府提供收入。
Harmful algae blooms are a common cause of fish kills.
有害藻类大量繁殖是鱼类死亡的常见原因。
It isn't harmful and usually goes away within a few hours.
其本身对身体无害，而且经常在很短的几个小时内就会缓解。
Of course, this study does not settle the question of how potentially harmful a new mercury filling is.
当然，这项研究没有回答新的汞合金填充物具有多大的潜在危害。
Even if people can economically support a retirement at 65, over thirty years of potential inactivity is harmful to cognitive and emotional vitality.
即使在经济条件允许的情况下，人们能够65岁就退休，但超过30年不开发利用自己的潜能对于认知和情感的活跃是有害的。
Though the precise harm to our bodies remains unknown, concerns include the microplastics themselves, as well as the fact that they absorb a range of harmful bacteria.
虽然微塑料具体会对我们身体造成怎样的伤害尚不明确，但微塑料本身和他们吸收了大量的有害细菌这一事实让我们忧心忡忡。
What they do is to look at familiar conditions from a perspective that makes these conditions seem foolish, harmful, or affected.
他们所做的就是从一个使这些情况显得愚蠢、有害或做作的角度来看待这些熟悉的情况。
Healthy lungs produce a natural antibiotic that protects them from infection by routinely killing harmful bacteria on airway surfaces.
健康的肺部会产生一种天然的抗生素，通过杀死呼吸道表面的有害细菌来保护肺部不受感染。
I see a dangerous trap here: what if you experience something that feels very good in the short term but is actually harmful in the long term?
在这里我看到了一个危险的陷阱：如果你经历某事在短期内感觉很好，但从长期来看实际上是有害的，那该怎么办？
Certain types of bacteria are extremely harmful, and it takes only a small number to make you sick.
有些种类的细菌非常有害，只需要一点点就能让你生病。
Also, certain types of bacteria are extremely harmful, and it takes only a small number to make you sick.
此外，有些类型的细菌是非常有害的，只需要少量细菌就能让你生病。
So the need to quickly recognise things that could be helpful or harmful could have had a great influence on rock art and explain why some images are more common across cultures than others.
因此，快速识别事物是有益还是有害的需求可能对摇滚艺术产生了巨大的影响，并解释了为什么一些形象在不同文化中比其他的更常见。
However, not all the people know that noise is also a kind of pollution, and that is harmful to human health, too.
然而，并不是所有的人都知道噪音也是一种污染，对人类健康也是有害的。
If a product is harmful to people's health, it should be withdrawn from sale immediately.
如果一个产品对人们的健康有害，应当立即停止销售这一产品。
It's harmful for your eyes to stare at the computer or mobile phone screen for a long time.
长时间盯着电脑或手机屏幕对你的眼睛有害。
According to a paper in 2011 by Mr. Hsiang and co-authors, civil conflict is related to El Nino's harmful effects.
2011年，萧先生及其合著者发表的一篇论文指出，国内冲突与厄尔尼诺的危害有关。
The results of a growing number of studies suggest that even a modest vitamin shortfall can be harmful to your health.
越来越多的研究结果表明，即使是轻微的维生素缺乏也会对健康有害。
Smoking is not only harmful to smokers themselves but also a threat to public health, especially to women and children.
吸烟不仅对吸烟者本身有害，而且对公共健康，尤其对妇女和儿童的健康造成威胁。
Wastepaper causes the release of a kind of harmful gas.
废纸会导致一种有害气体的释放。
A vaccine with harmful effects could cause more problems than it solves.
有不良影响的疫苗造成的问题可能会比它所能解决的问题更多。
It collects heat from fields to make electricity, Linda says her invention creates electricity in a way that is less harmful to the environment.
琳达说，她的发明产生电力的方式对环境危害较小，那就是从田野里收集热量发电。
These include plants that have sensors printed onto their leaves to show when they're short of water and a plant that can detect harmful chemicals in groundwater.
其中包括叶子上载有传感器的植物，能显示出它们何时缺水，还包括一种可以检测到地下水中有害化学物质的植物。
A new study says that going to bed late is harmful to our health.
一项新的研究表明晚睡对我们的健康有害。
The camera, also acting as a detector that finds trapped people and detects harmful gases, is placed in the robot, which can work in the dark.
摄像头被放置在机器人体内，可以在黑暗中工作，它还可以充当探测器，发现被困人员和检测有害气体。
A great deal of wastepaper ends up in rubbish and even landfills, where it can produce harmful gases.
大量的废纸最终被丢进垃圾堆，甚至废物填埋场，在那里会产生有害气体。
As several of you noted, the global strategy for reducing the harmful use of alcohol is a true breakthrough.
正如你们一些人指出的那样，为减少有害使用酒精的全球战略是一个真正的突破。
Whether EMFs are harmful or not, a break in the countryside, without the cellphone, would probably be good for all of us.
不管电磁辐射有害与否。远离手机，去乡间度假，这或许对我们来说是很有益处的。
The hope is that patients come to see the psychological cost of a harmful relationship and act to change it.
希望病人会逐渐看到一个有害的人际关系会让他付出心理上的代价，并采取行动来改变它。
Vitamins and minerals are essential to human life, but taking supplements in excessive amounts can be harmful, a fact many people are unaware of.
维生素和矿物质对人的生命至关重要，但是摄入过量便会有害，许多人还不了解这一点。
"The effects of acid rain, encroaching development and harmful invasive species are taking a toll here," Hughes says.
休斯说：“由于酸雨的影响，领土被偷偷侵占，有害的入侵物种等种种原因，令公园风光不再。”
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