lǎo shǔ / zài / zì rán jiè / yǒu / hěn duō / tiān dí / bǐ rú / māo tóu yīng / hé / shé老鼠在自然界有很多天敌,比如猫头鹰和蛇。Rats have many natural enemies in nature, such as owls and snakes.