这些人与符号和概念打交道，因此也称为知识分子，他们已经变得和工程师一样专业化了。
These people, called intellectuals in the sense that they deal with symbols and ideas, have become professionalized in exactly the same sense as the engineer.
研究人群天生就是聋子，从没有学过西班牙语或其它正式的符号语言，但是他们有一套能让他们与周围人沟通的手语系统。
Members of the group were born deaf and never learned Spanish or a formal sign language, but they have developed a gesture system to communicate with people around them.
商标指将一家制造商或经销人的商品与另一家制造商或经销人的商品加以区别的一种标志或符号。
A trademark is a mark or a sign that distinguishes the goods of one manufacturer or trader from those of another.
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