经常存在的

Beyond technical contributions, they must then integrate their communities in order to mobilize volunteers and avoid the ever-present danger of forking and balkanization.

除了技术上的贡献，他们还必须对他们的团体进行整合，以激励志愿者并且避免经常存在的分歧和条块分割的风险。

This paper gives a simple idea about the problems existing in students' writing: 1 psychological blockage, such as anxiety, lack of interest so on and so forth. 2 Chinglish frequently appears in Chinese students' composition. That is to say Chinese students often use Chinese way of thinking to writing English composition. 3 When Chinese students write, they usually commit intralingual error. Intralingual error is the mistake that students often make when they choosing words, making sentences. It also includes grammar mistake. 4 Chinese students often don't know how to organize the ideas when they face the composition topic. As a result, the compositions written by most of Chinese students don't have clear topic sentence. 5 Chinese students' compositions are usually very boring and dull. Based on the problems that exit in Chinese students' composition, this paper put forward five teaching strategies: 1 English teachers should foster positive emotion when they teach writing.

本课题简单阐述了中学生英语写作中普遍存在的5个问题：1、对英语写作存在心理障碍，比如畏惧心理等；2、中学生英语作文存在大量"中国式英语"，即学生经常借用汉语思维进行英语写作，使得文中出现不符合英文习惯的句子和表达；3、中学生在进行英语写作时经常犯言内错误，言内错误指学生在用词，造句及句法等方面经常容易犯的错误；4、中学生在面临所给的作文题目时不知道如何审题，写出来的作文中心思想不明确；5、中学生英语作文普遍存在内容单调贫乏的问题。

With many of the poor, hunger is a c**tant problem.

食不果腹是许多穷人经常存在的问题。

Has an ever-present, big and toothy grin.

有一个经常存在的，大和牙齿的笑容。

On other Web sites, such as Nasty Nets, Supercentral and Yahoo's bookmarking service Del.icio.us, artists link to videos, photos and other digital ephemera they've come across.

&由于经常在网上冲浪，我会对那些原以为不存在的事物有所领悟，&阿肯格尔解释说。&于是我开始了创作。&

On other Web sites, such as Nasty Nets, Supercentral and Yahoos bookmarking service Del.icio.us, artists link to videos, photos and other digital ephemera theyve come across.

&由于经常在网上冲浪，我会对那些原以为不存在的事物有所领悟，&阿肯格尔解释说。&于是我开始了创作。&

We often cover issues in the work of government.

我们经常报道政府工作中存在的问题。

We too often borrow trouble, and anticipate that may never appear.

我们经常自找麻烦，去预感那些不可能存在的事情。

Debeaking, branding, castration, ear notching, wing and comb removal, dehorning, teeth clipping, and tail and toe docking are ever-present tasks on today's farm and ranch.

例切喙尖﹑打烙印﹑阉割﹑耳切缺口﹑切除翅膀和鸡冠﹑去角﹑，裁剪牙齿、尾部和脚趾在今天的农场和牧场都是经常存在的。

The method is realized via the following steps: first to apply Isomap or LLE to get the embeddings of the original data set in the low dimensional space; then to obtain support vectors, which are the most significant and intrinsic data for the final classification result, by using support vector machine on these low dimensional embedding data; subsequently to get support vectors in the original high dimensional space based on the corresponding labels of the obtained low dimensional support vectors; finally to apply support vector machine again on these high dimensional support vectors to gain the final classification discriminant function.

数据挖掘是数据库知识发现中最重要的步骤之一，其目标是从获取的数据中高效准确地挖掘出我们所需要的信息。在实际应用中，数据往往呈现海量、高维、非线性等特性，这些特性给数据挖掘带来了很多问题，例如海量特性导致的计算效率低下问题、高维特性带来的维数灾难问题和非线性特性引起的线性模型失效问题等。幸运的是，实际中高维数据的属性之间往往存在一定的规律性和相关性，即实际数据经常存在着外在与内在两个维数。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。