graptocamara笔: pen; pencil; stylus; writing ...腔: cavity; chamber笔石: graptolite属: join; combine复腔笔石属: bithecocamara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:笔腔笔石属，即可在微信中查询翻译
