layer of scum

常見(jiàn)例句

雙語(yǔ)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(duì)水裡的動(dòng)物和遊泳的人來(lái)說(shuō)都是有毒性的，赤潮藻還會(huì)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(xiàn)，使其不能生長(zhǎng)。
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