表情符号是代表情感的简单符号，而表情包是由很多部分组成的。

While emoji are simple symbols that represent an emotion, stickers are made up of many parts.

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分析了三维统计地图符号的构图规律，并将其分为简单符号、复合符号和组合符号3类。

This paper analyzes the rule of composition of a map of 3d statistic map symbols. They are divided into three kinds: simple symbols, compound symbols and combination symbols.

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他们画简单的图画或符号来代表事物和思想，也代表他们的语言。

They drew simple pictures or signs to represent things and ideas, and also to represent the sounds of their language.

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So this is a little bit of math, a little formality, but is everyone okay with that?

这里只是稍微用了点数学符号,还有简单的公式,大家都听懂了吗

耶鲁公开课 - 博弈论课程节选

What the whole note is, what all these symbols are are simply representations of duration so we have a symbolic language here that's going to represent the horizontal axis the axis of duration.

什么是全音符,这些符号又都是什么呢,这些就是简单代表了持续时间,因此我们这里有一套符号语言,来代表横轴,就是时值的那条轴

耶鲁公开课 - 聆听音乐课程节选

Well, simply with the * notation at least on the way in when you declare the function called swap, you simply say this is not going to take an int and another int because that's useless.

好的，简单说，当你声明一个函数调用swap函数时,使用*符号，你可以简单说，这不能使用一个int数和另外一个int数,因为那是无效的。

哈佛公开课 - 计算机科学课程节选