变幻莫测的灰色和坚定不变的红色，这两道光芒控制住了河鼠，使他处于动弹不得，痴痴迷迷，又无能为力的状态。

The twin lights, the shifting grey and the steadfast red, mastered the Water Rat and held him bound, fascinated, powerless.

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首先，我们将完全修改主页 HTML，保持总体外观不变，但使该页面与浏览器更兼容。

First, we'll totally rework the main page HTML, keeping the same overall look, but making the page more browser-compatible.

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l在过程和步骤已经确定的给定系统中，一阶变化是个变异，它使系统本身相对的不变。

First-order change is a variation in the way processes and procedures have been done in a given system, leaving the system itself relatively unchanged.

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The main function of all your cells, and all your tissues, and all your organs is to maintain this homeostasis, which allows you to live in a changing environment.

你所有细胞,所有的组织,所有的器官最主要的功能,就是维护这个内稳态,使你能够以不变应万变

耶鲁公开课 - 生物医学工程探索课程节选

But for now assume that GetInt just makes the cursor blink or at least stay steady -- it depends on your computer and operating system and such.

但是现在假设GetInt只是使光标闪烁,或者是不变的--它依赖于你的电脑,和操作系统之类的。

哈佛公开课 - 计算机科学课程节选