The dream of personalised flight is still vivid in the minds of many inventors, some developing cycle-powered craft, others pouring money into jetpacks.
个人飞行的梦想在许多发明家的脑海中仍然鲜活生动，一些人开发循环动力飞行器，另一些人则往喷气背包上大量投入资金。
This cycle repeats itself ad infinitum.
这个周期一直循环往复。
Cheap imports decimated the British cycle industry.
廉价进口严重削弱了英国的自行车工业。
Not all doctors truly understand the reproductive cycle.
并非所有的医生都完全地了解生育周期。
Such areas should also be served by dedicated cycle routes.
这些地区也应该可由自行车专用路线到达。
We need to break the vicious cycle of violence and counterviolence.
我们需要结束暴力和反暴力的恶性循环。
There are a multitude of small, quiet roads to cycle along.
有多条可以骑自行车的僻静小路。
The average length of a woman's menstrual cycle is 28 days.
妇女的平均月经周期是28天。
Many of the industrialized economies would be pushed into a cycle of stagflation.
许多工业化经济将被推入到一个滞胀的循环中。
So begins another phase of the cycle.
这样就开始了循环的另一个阶段。
Two factors appear to be generating the cycle: food plants and predators.
产生这种循环的因素有两个：食用植物和食肉动物。
Typically, the animal's daily internally generated cycle of activity continues without change.
通常情况下，动物每天内部产生的活动循环继续保持不变。
Proper selection will eliminate one source of likely breakdown in the communication cycle.
正确的选择将消除沟通周期中可能出现的故障。
The scientists concluded that the solar wind activity must follow the same cycle.
科学家们得出结论，太阳风的活动必须遵循相同的周期。
Then the cycle continues, less rain, drier soil, less vegetation, fewer clouds, less rain etc.
然后这个循环继续下去，雨水减少，土壤变干，植被减少，云层减少，雨水再减少等等。
The cyclists should all have to be made to use the cycle lanes and wear helmets.
骑自行车的人都必须在自行车道行驶，并且要戴上头盔。
When nutrients are used over and over in the environment, we call that a nutrient cycle.
当营养物质在环境中被反复使用时，我们称之为营养循环。
As a result, its activities are shifted relative to the external cycle of the new environment.
因此，它的活动相对于新环境的外部循环发生了转移。
A particular animal typically maintains its own characteristic cycle duration with great precision for many days.
某一种动物通常可以在很多天内极其精确地保持其特有的周期时间。
We can see how the product life cycle works by looking at the introduction of instant coffee.
通过观察速溶咖啡的推行，我们可以看到产品生命周期是如何运作的。
Each tidal cycle carries plant material into the offshore water to be used by the subtidal organisms.
每个潮汐周期都会将植物带到近海海水中，从而被潮水下的生物所利用。
These tiny things form the base of the food chain and play an important role in the global carbon cycle.
这些微小的东西构成了食物链的基础，并在全球碳循环中发挥着重要作用。
We observed a clear periodicity in the number of whales stranded each year that coincides with a major climatic cycle.
我们观察到每年搁浅的鲸鱼数量有明显的周期性，这与一个主要的气候周期相吻合。
On one side we could have the paper production cycle—here on the left—and on the other side the recycling.
我们可以看到，这里一边展示的是纸张的生产循环——在左边这里——另一边是纸张的循环利用。
The calendars that were developed at the lower latitudes were influenced more by the lunar cycle than by the solar year.
在低纬度地区制定的历法受月球周期的影响比受太阳年的影响更大。
What we do know is that people tend to have different kinds of nightmares at different points during the sleep cycle.
我们现在所知道的就是，人们在睡眠周期的不同阶段往往会做不同类型的噩梦。
It is likely that intolerant folks grew up imitating intolerant parents and the cycle of prejudice has simply continued for generations.
不宽容的人很可能是在成长过程中效仿了不宽容的父母，这种偏见的循环延续了几代人。
It would be a mistake to think we are right now simply experiencing the painful side of a boom and bust cycle.
如果认为我们现在只是在经历大起大落循环中痛苦的那一面，那就错了。
Called conditional cash transfers or CCTs, these social assistance programs are designed to reduce inequality and break the cycle of poverty.
这些被称为有条件现金转移支付的社会援助项目旨在减少不平等现象，打破贫困循环。
In many important areas, from the obsidian industry to religious tourism, Teotihuacán's success and prosperity typified the classic positive feedback cycle.
在许多重要的领域，从黑曜石产业到宗教旅游，特奥蒂瓦坎的成功和繁荣是典型的正反馈循环。
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