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5I'k3A8H'o-K兰州五中网站 I'd like to give her a nice going-away present.

我很想送给她一件好档离别礼物。

MidAmerican will get a significant going-away present .

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We have a great many things to do at present.

我们目前有许多事情要做。

Data mining, known as Knowledge Discovery in Databases, is defined as the nontrivial extraction of implicit, previously unknown, and potentially useful information from a great volume of data accumulations. It uses machine learning, statistical and visualization techniques to discover and present knowledge in a form being easily comprehensible to humans. Data mining is an advanced data processing technique.

数据挖掘是在数据和数据库急剧膨胀的背景下，为解决"人们被数据淹没，但却饥饿于知识"这种困境而产生的，也是数据库技术、人工智能技术、统计技术、可视化技术等发展的结果，其目的就是从大量的、不完全的、有噪音的、模糊的数据中提取出隐含在其中的潜在有用的可信、新颖并能被人理解的信息和知识，它是一种高级的数据处理过程。

At present, there are a large number of achievements in theoretical research.

目前，在理论研究方面已经有大量的成果。

At present, there is a relatively large number of illegal operations.

目前，有相当多的非法活动。

I have worked in my present company for a considerable length of time

了。我在现时的公司已工作了颇长的时间，虽然我喜欢现时的工作，但我认为我已积累了

I've got a little present for you.

我有一件小礼物给你。

At present, the company has a strong nationwide sales network, products are exported to Russia, Europe and the United States and other places.

目前，公司在全国拥有强大的销售网络，产品远销俄罗斯，欧美等地。

At present, Changhong has a nationwide marketing network of more than 30,000 and more than 8,000 service outlets.

目前，长虹拥有遍及全国的30000余个营销网络和8000余个服务网点。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。