ribbed mantle具: utensil; tool; implement肋: rib costal region壳: shell; hard surface壳套: covering; valve jacket; valve mantle; valve mentle具肋的: costate; ribbed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:具肋壳套，即可在微信中查询翻译
