garbenschiefer芥: mustard点: drop板: board; plank; plate岩: rock斑点板岩: knotted slate; ottedslate; spotted slates(shales)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:芥点板岩，即可在微信中查询翻译
