The cavity of the tympanic part of the meatus acusticus externus, being similar to that of the horse, is a narrow cleft. 2.是什么意思_The cavity of the tympanic part of the meatus acusticus externus, being similar to that of the horse, is a narrow cleft. 2.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句