For formal use, the variable can be marked with a "#" symbol -- or "#1", "#2", and so forth -- if multiple variables exist in one sentence.

对于正式的使用，如果一个句子中存在多个变量，则变量可以用“#”符号（或“#1”和“#2”等）作为标记。

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The results in experiment 1 showed that there is perceptual symbol representation in comprehension when subjects complete recognition task once after they read the key sentence.

实验1中被试读完句子以后马上进行图画探测任务，结果表明这时被试头脑中进行的是知觉符号表征。

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