基本解释[商業]獺鼩英英字典柯林斯英英字典 any small otter-like amphibious mammal, esp Potamogale velox, of the family Potamogalidae of W and central Africa: order Insectivora (insectivores) otter shrew剑桥字典otter shrew柯林斯字典专业释义商業獺鼩