当您有了VectorSpace . pm模块之后，需要进行一次微小的更改以支持把所有字母数字字符扩展到向量空间中的词中。

Once you have the VectorSpace.pm module, a small change needs to be made to support the expansion of all alphanumeric characters into words in the vector space.

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将向量中剩余的符号结合到字符串并在屏幕上显示结果。

Join remaining tokens in the vector into the string and display the result on the screen.

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步骤7：在求值的最后一步，向量中剩余的符号被结合到字符串，并在屏幕上显示。

Step 7: in the last step of the evaluation, the remaining tokens from vector are joined in a string and displayed on the screen.

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