layer of scum
常見例句
- The algal blooms, which can be toxic to animals and human swimmers, leave behind an ugly layer of green scum that fouls tourist beaches and starves seaweeds of light.
海面上的赤潮對水里的動物和游泳的人來說都是有毒性的，赤潮藻還會在海面上留下一層難看的綠色浮渣，不但污染了供人旅游的海岸，還遮擋了海草的光線，使其不能生長。 返回 layer of scum