HomeDictionary二级头呼吸器二级头呼吸器Word(scuba diving) regulator; demand valveTraditional二級頭呼吸器Copy wordèr jí tóu hū xī qìer4ji2tou2hu1xi1qi4Hear itMeaning(scuba diving) regulator; demand valve CC-CEDICTCharacters in 二级头呼吸器二èr级jí头tóu呼hū吸xī器qìWords with 二级头呼吸器备用二级头呼吸器bèi yòng èr jí tóu hū xī qì(scuba diving) backup regulator; octopusWord