xiè měng / shì / yì zhǒng / yǐ / páng xiè / wéi / zhǔ shí / de / xiǎo xíng / bǔ rǔ dòng wù蟹獴是一种以螃蟹为主食的小型哺乳动物。The crab-eating mongoose is a small mammal that feeds mainly on crabs.