基本解释n.弧前；岛弧前同根派生 forearc相关词英汉例句用作名词 (n.)The forearc deposition system at the southern margin of North Qinling indirectly recorded this evolution of subduction.北秦岭南缘的弧前沈积体系记录了这种俯冲作用的演化。forearc更多例句