layer of scum
常见例句
- 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.
海麪上的赤潮對水裡的動物和遊泳的人來說都是有毒性的，赤潮藻還會在海麪上畱下一層難看的綠色浮渣，不但汙染了供人旅遊的海岸，還遮擋了海草的光線，使其不能生長。 返回 layer of scum