firm rockhard rocksolid rock坚: hard; solid; firm; strong岩: rock坚石；坚岩: solid rock坚岩地质学: hard rock geology坚朽节: firm knot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:坚岩，即可在微信中查询翻译
