名词
中文翻译：泡沫
同义词：
['foam', 'froth', 'bubble例句：1. The foamback on the surface of the lake was so thick that it obscured the sky.（湖面上的泡沫层非常厚，以至于遮住了天空。）']
例句：
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1. The foamback on the surface of the lake was so thick that it obscured the sky.
湖面上的泡沫层非常厚，以至于遮住了天空。
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2.The chef used a special technique to create a foamback that would keep the food warm.
厨师使用了一种特殊的技术来制作泡沫层，以保持食物的温度。
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3.The foamback was so light that it floated on the surface of the water.
泡沫层非常轻，以至于浮在水面上。