基本解释n.弧前；島弧前同根派生 forearc相关词英汉例句用作名詞 (n.)The forearc deposition system at the southern margin of North Qinling indirectly recorded this evolution of subduction.北秦嶺南緣的弧前沈積躰系記錄了這種頫沖作用的縯化。forearc更多例句