sea otter fur
常见例句
- Polar bear hair is hollow to trap air for insulation while the sea otter has the densest fur with125000hairs per cm2.
北极熊的毛发是中空的，用以困住绝缘空气层；海獭的毛皮稠密到每平方公分十二万根。 - America's westward expansion went hard on the California sea otter, which seemed to vanish in the first half of the 19th century, an unlucky victim of the fur trade.
19世纪上半叶以来，加州海獭成为毛皮贸易的受害者并渐渐的消失，而美国的西部扩张运动更让其生活变得日益艰难。 返回 sea otter fur