noun🔗Share泥鳅，鳅鱼。 A bottom-feeding freshwater fish in the superfamily or suborder Cobitoidea."The aquarium owner added a few loach to the tank because they help keep the bottom clean by eating leftover food and algae. "水族箱主人在鱼缸里放了几条泥鳅，因为它们能吃掉残饵和藻类，帮助保持底部清洁。fishanimalbiologynatureChat with AIVocabulary GamePractice Reading
noun🔗Share轻型观察直升机 Acronym of light observation helicopter."The mechanic worked on the loach's engine, preparing it for its next reconnaissance mission. "机械师正在修理这架轻型观察直升机的引擎，为下一次侦察任务做准备。militaryvehicleChat with AIVocabulary GamePractice Reading
