I don't know for what this pebble is useful but it must be useful.
我不知道这块石头能用来干吗，但是它一定有用。
But for this data to be useful after a disk or server crash, it must be stored on another server.
但对于在磁盘或服务器崩溃后有用的数据，必须存储在另外一台服务器上。
Aesthetics matter, but first and foremost a language must be useful; it must allow real-world programmers to express real-world ideas succinctly and affordably.
漂亮也很重要，但是最重要的是有用。一种编程语言必须让真实世界的程序员简洁并以较低代价表达真实世界的想法。
Every prospective AW author must submit a proposal form that asks them to describe the target market, how useful the book will be to others, and how they envision promoting it.
每一位预期的Addison -Wesley的作者必须提交一个申请表，表中描述了市场定位、此书相对于其他书的有用性以及他们预想的促销书籍的手段。
For it to be useful, there must exist a program that exploits its functionality and provides a user interface.
为了使它有用，必须存在一个利用其功能并提供用户界面的程序。
For an adapter to be useful across various platforms, it must adhere to a common specification.
对于跨各种平台使用的适配器，必须遵循公共规范。
Wherever possible, data must be simple to enter and must accurately reflect the situation; it must also be in a useful, usable form for both input and output.
不论在哪里，数据的输入必须简单且数据能准确地反应情况，还要以一种对输入输出有效的且可用的格式。
I know it must be terrible to grow old and infirm and to lose your intellect, but I want my mother to know she is valuable because she is loved, not because she is useful.
变老，体弱，思维迟钝，我知道这一切很糟糕，但我想让我的母亲明白她的价值在于她被爱，而不是她有用。
But that jealousy, to be useful, must be impartial, else it becomes the instrument of the very influence to be avoided, instead of a defense against it.
不过这种提防，要想做到有效，必须不偏不倚，否则会成为我们所要摆脱的势力的工具，而不是抵御那种势力的工事。
For data to be useful, we must be able to store, transmit and process it. Chemical engineering can help with all three actions.
要使用数据，我们必须能储存、传递和处理它。在这三方面化学工程师都大有帮助。
The gas from blast furnace is useful for heating purpose. But it contains a considerable amount of dust, so it must be cleaned before used as a fuel.
高炉煤气用来加热很有用。但它含有大量的灰尘，所以在用作燃料之前必须经过除尘。
Thus, materiality provides a threshold or cut - off point rather than being a primary qualitative characteristic which information must have if it is to be useful.
因此，重要性与其说是信息要成为有用所必须具备的基本质量特征，倒不如说是提供了一个门槛或取舍点。
The result is an enormous amount of data that must be carefully analyzed in order for it to be useful and meaningful.
结果是必须被仔细分析它有用和有意义的大量数据。
Repentance is a kind of self-reproof for having neglected something useful; but that which is good must be something useful, and the perfect good man should look after it.
后悔是一种因为忽视了某件有用的事情而作的自我斥责，而那善的东西必定也是有用的，完善的人应当追求它。
Thus, materiality provides a threshold or cut-off point rather than being a primary qualitative characteristic which information must have if it is to be useful.
因此，重要性与其说是信息要成为有用所必须具备的基本质量特征，倒不如说是提供了一个门槛或取舍点。
However, to be truly useful, a review must not just be a long version of "I loved it", or "I think its a pile of junk! "
作为一个有用的评测意见，不应该只是简单的“我喜欢他”或者是“我认为这是一堆垃圾”之类的。
Enables code to request the permissions it requires in order to run, as well as the permissions that would be useful to have, and specifies which permissions the code must never have.
使代码能够请求运行所必需的权限及其他一些有用的权限，并指定代码绝对不能拥有哪些权限。
This is very useful to a shape analysis and recognition. However, it is required that every level shape of image must be faithful to the shape of the original picture.
分层对图形的识别和分析是很有用的，但是这要求每一分层对原图能保真。
I wanted him in the staff. He has acquired a strong understanding that can be useful for next year's players. It is a legacy that Milan must take advantage of.
我想让他帮助我，他也强烈的感到他能帮助新球员提高，米兰的球员必须利用这个财富。
But that's ok and one must listen to everything: when the criticism is constructive it can be useful and must be welcomed.
但那不算什么，我们必须关注一切：当批评成为动力，批评是很有用且是必定受欢迎的。
But that's ok and one must listen to everything: when the criticism is constructive it can be useful and must be welcomed.
但那不算什么，我们必须关注一切：当批评成为动力，批评是很有用且是必定受欢迎的。
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