基本解釋[地球科學]波羅的地盾詞組短語短語baltic c shield 波羅的地盾baltic shield更多詞組英英字典柯林斯英英字典 the wide area of ancient rock in Scandinavia (Also called Scandinavian Shield.)baltic shield劍橋字典baltic shield柯林斯字典專業(yè)釋義地球科學波羅的地盾