noun 下载 🔗分享 鳃盖，厣 A covering flap in animals, such as a gill cover. Examples : "The fish opened and closed its operculum, allowing it to breathe underwater. " 这条鱼一张一合地扇动着鳃盖，让它能够在水下呼吸。(Zhè tiáo yú yī zhāng yī hé de shāndòngzhe sāigài, ràng tā nénggòu zài shuǐxià hūxī.) organism animal biology anatomy fish part 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 盖，蒴帽，口盖 The lidlike portion of a moss sporangium or of a fruit that detaches to allow the dispersal of spores or seeds. Examples : "The operculum on the moss capsule popped open, releasing a cloud of tiny spores into the air. " 苔藓蒴果上的蒴帽突然弹开，释放出一团细小的孢子到空气中。 plant part biology seed 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 牙龈瓣，龈瓣. A gum flap covering (part of) a partially erupted tooth, usually a wisdom tooth. Examples : "The dentist carefully removed the operculum, allowing the wisdom tooth to finally emerge. " 牙医小心地切除了覆盖在智齿上的牙龈瓣，使智齿最终得以萌出。 medicine anatomy body part 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 盖， operculum, 鳃盖 A structure which serves as a cover or lid. Examples : "The snail closed its operculum, sealing itself safely inside its shell. " 蜗牛闭合了它的厣 (yǎn)，安全地把自己封在了壳里。 part biology anatomy structure organism 与AI对话词汇游戏阅读练习
