名词
中文翻译：白沫
同义词：
['white froth', 'white foam']
例句：
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1.The milk was so thick that it formed a white smear on the glass.
牛奶太浓了，在玻璃上形成了一层白沫。
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2. The chef used a special technique to create a white smear on the plate.
厨师使用了一种特殊的技巧，在盘子上形成了一层白沫。
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3.The wine had been left too long, and now there was a white smear on the edge of the glass.
葡萄酒放得太久，现在酒边有一层白沫。