Over the years he's demonstrated a certain prescience in foreign affairs.
多年来他在外交事务上表现出了一定的预见能力。
An aeroplane has to reach a certain speed before there is enough lift to get it off the ground.
飞机得在达到一定的速度以后，才能有足够的提升力从地面起飞。
You could also set up a trust so the children can't spend any inheritance until they are a certain age.
你也可以建立信托，那样孩子们到了一定的年龄以后才可以用任何遗产。
It also must fit inside a certain space.
它还必须能容纳在一定的空间内。
A flowchart is used to put events in a certain order.
流程图用于将事件按一定的顺序排列。
Maybe you say "go", or turn on a certain song, or whatever.
也许你会说“开始”，或者打开某一首歌，或者其他什么。
In some cultures, there is an amazingly large vocabulary to describe a certain thing.
在一些文化中，有惊人的大量词汇来描述某一特定事物。
He only said with a smile, "Won't it be better for your ideas on a certain problem?"
他只是微笑着说：“在某一个问题方面，难道你不会有更好的主意吗？”
Joseph has learned that a farmer has to have a certain mindset to successfully convert.
约瑟夫了解到，一个农民必须具备一定的心态才能成功地作出转变。
If lgA levels suddenly fall below a certain level, training is eased or dropped altogether.
如果lgA 指数突然下降到某一水平以下，训练就会降低难度或完全取消。
Flight attendants, firefighters and police officers have to be over a certain height, and be physically fit.
空乘人员、消防员和警察必须超过一定的身高，并身体健康。
Their astronomers had discovered that at a certain time of year the brightest star, Sirius, would disappear.
他们的天文学家发现，在一年中的某个时候，最亮的天狼星会消失。
Most fashion magazines or TV advertisements try to persuade us that we should dress in a certain way or behave in a certain manner.
大多数时尚杂志或电视广告都试图说服我们应该按照某种方式穿衣或表现。
Like animals that eat a certain plant and that plant relies on a certain fungus to help it get nutrients from soil and on a certain insect for pollination.
比如动物吃某种植物，而这种植物依靠某种真菌从土壤中获取营养，依靠某种昆虫来授粉。
A Mercedes carries a certain cachet.
奔驰汽车久负盛名。
He gained a certain notoriety as a gambler.
他落了个赌徒的恶名。
He behaves throughout with a certain sang-froid.
他一直表现得很镇静。
They finally agreed to our terms with a certain reluctance.
他们最终有点勉强地同意了我们的条件。
Such claims should be regarded with a certain amount of scepticism.
对这样的说法，大可不必全信。
He tapped on the door, opened it, and entered with a certain diffidence.
他敲了敲门，打开了门，带着一些羞怯走了进去。
You are going to have to take a certain amount of criticism, but you must cope with it.
你会受到一定程度的批评，但这是你必须面对的。
The president of the republic oscillated between a certain audacity and a prudent realism.
该共和国总统施政时而大胆，时而谨慎务实。
Regular repeating actions such as sound waves, light waves, or radio waves have a certain frequency, or number of waves per second.
有规律的重复活动如声波、光波、无线电波都有一个特定的频率，或者说是每秒的波动次数。
Unlike most libraries, a mini-bus with library books go to a certain place at a certain time.
与大多数图书馆不同，放着图书馆书籍的在特定的时间去特定的地方。
At a certain time and a certain place, when a moonbow happens to appear, you can't miss it if you're right there.
在特定的时间和地点，当月虹恰巧出现时，如果你就在那里，千万不要错过它。
People who fear change often stick to a certain lifestyle.
害怕改变的人往往会固守某种生活方式。
Some websites don't allow kids under a certain age to visit them.
有些网站不允许一定年龄以下的孩子访问。
The flour should be fermented for I5 to 20 hours at a certain temperature.
面粉应在一定温度下发酵15到20小时。
Supermarkets of a certain size must donate unused food, or they will be fined.
一定规模的超市必须捐赠未使用的食品，否则将面临罚款。
It's wrong and dangerous to leave children under a certain age alone in the house.
把一定年龄以下的孩子单独留在家里，是错误的、危险的。
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