Bōsī māo shì zuì yǒumíng de chángmáomāo pǐnzhǒng zhī yī.
The Persian cat is one of the most famous long-haired cat breeds.
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mistakes
长 here is cháng ("long"), not zhǎng ("to grow"). 长毛 as "long-haired (animal)" uses cháng; 长毛 as "to grow fur / become moldy" uses zhǎng. Context disambiguates.