branchial fold鳃: gill; branchia襞: folds鳃鳗幼体: ammocete鳃窦: branchial sinus; sinus branchialis塞: 塞名词(可做屏障的险要地方) a place of strategic importance 边塞 frontier fortress; 要塞 fort; fortress; fortification下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:鳃襞，即可在微信中查询翻译
