有些动物用颜色作为警告，让捕食者远离它们。

Some animals use color as a warning to make predators stay away.

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蜜蜂会做加减法——它们用颜色来代替加号和减号。

Bees are capable of addition and subtraction — using colors in the place of plus and minus symbols.

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用颜色去引起对这些区域的注意。

Use color to help draw attention to these areas.

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They are linked together by four different colored segments indicated here not by colors now but by letters.

它们由四个不同颜色的片段连接,这里不是用颜色表示,是用字母表示

耶鲁公开课 - 生物医学工程探索课程节选

It's the phosphate and the pentose that make up the backbone - that make up the upright struts of the ladder and it's the bases that make up the connecting struts, so the bases are the colors.

磷酸基和戊糖,共同构成了主链,主链又构成了梯子上下的支柱,而碱基,则构成连接支柱的梯阶,碱基是用各种颜色表示的

耶鲁公开课 - 生物医学工程探索课程节选

So let's -- we'll go to a brand new color, TS define A as u minus TS.

我们用一种新的颜色，定义A等于u减去。

麻省理工公开课 - 热力学与动力学课程节选