slab packet扁: small out-of-the-way纽: handle; knob扁盘虫科: phacodiscidae扁泥甲若虫: water penny扁盘动物: placozoa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:扁纽，即可在微信中查询翻译
