凭空而来

但他“怪人杰克”（wackojacko）的昵称也不是凭空而来的。

But he did not earn the nickname " wacko Jacko " for nothing .

这次粮食危机决非凭空而来。

This crisis did not come out of the blue .

但这并不意味着我们认为它是凭空而来的。

Which doesn 't mean we thought it came out of nowhere .

政府管理模式的选择不是凭空而来的。

The choice of the government management model is determined by many factors .

这样的衣服不是凭空而来的，也不是来自遗产。

Clothes like these don 't make themselves , and legacy doesn 't make them either .

报表不是凭空而来的；它们需要某个数据源以向用户显示数据。

Reports don 't appear from nowhere ; they need a source of data to present to the user .

外面，受到一弯好似凭空而来的新月的推动，海洋慢慢升起，涌向高潮。

Outside , the ocean slowly rose towards high tide , driven by a crescent moon that had seemingly come out from nowhere .

在转化现有的库类来使用泛型方面没有多少技巧，但与平常的情况相同，向后兼容性不会凭空而来。

Converting existing library classes to work smoothly with generics was no small feat , but as is often the case , backward-compatibility does not come for free .

前面几期文章曾多次提到，模型不是凭空而来的，建立模型是为了服务于特定的目的。

As I have stated many times in this series , a model is not drawn in a vacuum ; it is created to serve a specific purpose .

而要有理论的创新，就必须解放思想，但思想形式并不是凭空而来，构建和谐社会必须从已有的思想资料出发。

But to have theoretical innovation , must liberate a thought , but the thought-form and instead , constructing the harmonious society must proceed from the idea of data .

他的成功不是凭空而来的。他在中学就自学了大学英语，所以比其他同学领先了一步。

His success does not spring up out of nowhere . As he self-studied College English in high school , he has had a head start over his peers .

构式意义不可能凭空而来，其最终理据只能在现实规则，人类的认知能力和语言系统本身的相互作用中找到。

Constructional meaning cannot come from nothing , its ultimate motivation can be found in the interaction among the rules of reality , the human cognitive competence and the language system itself .

今天，台、澎、金、马的两千三百多万人民所拥有的政治、经济成果，同样不是凭空而来，而是靠著一代一代的努力、一点一滴的累积。

Likewise , the political and economic achievements of the23 million people of taiwan , penghu , Kinmen and Matsu today did not suddenly fall from the sky , but result from the accumulation of the relentless efforts made generation after generation .