这个头像可以是网络游戏或者虚拟世界里三维立体的图像，也可以是网络论坛或社区里常用的二维平面图像。
It may take either a three-dimensional form, as in games or virtual worlds, or a two-dimensional form as an icon in Internet forums and other online communities.
在网络论坛、即时信息工具以及网络游戏中，这些文本符号表情通常会被自动替换为对应的图像表情，不过它们还是被称为emoticon。
In web forums, instant messengers and online games, text emoticons are often automatically replaced with small corresponding images, which came to be called emoticons as well.
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