zhè / ge / cí / yǔ / shí / fēn / cū / sú / bù / shì / hé / zài / zhèng / shì / chǎng / hé / shǐ / yòng / yín / xué这个词语十分粗俗,不适合在正式场合使用“淫穴”。This word is extremely vulgar, so “淫穴” is not suitable for use in formal settings.