Similarly, just as we have symbols for the presence of sound and its length, we have symbols that represent the absence of sound.

类似的,既然我们有符号,来表示声音的频率和长度,我们也有表示静音的符号

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or you can use an "I don't think" question, which, of course, is very similar, only in the negative version of the "I think" question.

当然，你也可以使用“I don't think”的句型，它与“I think”句型十分类似，只不过是以否定句的形式表示。

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