俄罗斯为什么叫大猫咪

"大猫咪" (Da Maomi) is not an official name for Russia. It is a nickname that is sometimes used informally in China to refer to Russia. The nickname is derived from the Russian word for cat, "кот" (kot), which is similar to the Chinese word for cat, "猫" (mao). The nickname is often used in a playful or affectionate way to refer to Russia or Russian culture. It is not commonly used in Russia itself, and it is not an official or widely accepted term for the country.