He wrote several long poems, but is best known for his one hundred and fifty-four short poems,or sonnets.

VOA: special.2010.01.06

If we have a high frequency, what about the wavelength, long or short? All right. Good. So we should always be able to keep these relationships in mind.

如果频率高，那波长是长还是短？,好，不错，我们要记住这些关系,类似的。

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