haplospirifer简单: simple; uncomplicated; plain ...石: dan,a unit of dry measure fo ...燕: swallow属: join; combine二叠石燕属: permospirifer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:简单石燕属，即可在微信中查询翻译
