For milder depressions, certain forms of psychotherapy do work well.
对于比较轻微的抑郁症，某些形式的心理疗法确实很有效。
For example, an excess of certain proteins can cause cells to proliferate abnormally and become cancerous; a lack of the protein insulin results in diabetes.
例如，某些蛋白质的过量会导致细胞异常增殖并癌变；胰岛素蛋白质的缺乏会导致糖尿病。
It is their sensitive response to human circumstance that accounts for the persistence of certain universal ideas.
他们对人类环境的敏感反应解释了某些普遍观点的持久性。
These results provide support for researchers' prediction that naltrexone will turn out to be toxic to certain types of bacteria.
这些结果支持了研究人员的预测，即纳曲酮对某些类型的细菌是有害的。
I am certain of it, especially if it's difficult for a competitor to copy.
我对此非常确信，尤其是当竞争对手很难抄袭的时候。
A certain tropical island received food donations in the form of powdered milk for distribution to its poorest residents, who were thought to be malnourished.
某热带岛屿收到了以奶粉形式分发给最贫困居民的食品捐赠，这些居民被认为营养不良。
Two thirds of Internet users look online for information about a certain disease or medical condition.
三分之二的互联网用户上网寻找关于某种疾病或医疗状况的信息。
I still do a certain amount of work for them.
我仍旧为他们做一定数量的工作。
You have to allow for a certain amount of error.
你必须考虑到一定数量的错误。
They often include a certain amount of digging to test for buried materials at selected points across a landscape.
它们通常包括一定数量的挖掘，以测试在景观中选定的点上的埋藏材料。
On certain sites, particularly in South America, savanna formation seems related to frequent cutting and burning of moist forests for pastureland.
在某些地方，特别是在南美洲，稀树草原的形成似乎与频繁地砍伐和焚烧潮湿的森林作为牧场有关。
It means we should understand that what Ryan and so many Americans fought and died for is not a place on a map or a certain kind of people.
它意味着我们要认识到瑞恩和许多美国人并不是为了地图上的一个地点或者某一类人而战斗和牺牲的。
In order to eliminate the weed, biologists proposed treating infested parts of the lake with a certain herbicide that is nontoxic for humans and aquatic animals.
为了消除这种杂草，生物学家建议用某种对人类和水生动物无毒的除草剂来处理受感染的部分湖泊。
Prohibition on the use of certain hardwoods for furniture and building materials goes a long way towards protecting forests and thus the flora and fauna within that habitat.
禁止使用某些硬木作为家具和建筑材料对保护森林，进而保护该生活环境内的动植物大有帮助。
It shows how North American exporters quickly increased the exports of certain products to compensate for the restrictions imposed by the Acts.
它显示了北美出口商如何迅速增加某些产品的出口，以弥补法案施加的限制。
If you are a teenager living in certain parts of the province, you could be eligible for this program.
如果你是居住在该省某些地区的青少年，你将有资格参加这个项目。
Many too are seeing the advantages of scrapping a degree requirement for certain roles.
也有许多人看到了取消某些职位的学历要求是有所裨益的。
California has been facing a drought for many years now, with certain areas even having to pump freshwater hundreds of miles to their distribution system.
加州已经遭受旱灾多年，某些地区甚至不得不从数百英里外抽取淡水，输送到他们的给水系统中。
The prohibition of using certain hardwoods for furniture and building materials goes a long way towards protecting forests and thus the flora and fauna within that habitat.
禁止使用某些硬木来做家具和建筑材料对保护森林，从而保护该栖息地内的动植物大有帮助。
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