名词
中文翻译：Unknown
同义词：
['stratum', 'stratum', 'stratification例句：1. The layers ofthe cake are rich and creamy.（蛋糕的层次丰富而奶油。）2. The layers of thecity are diverse and complex.（城市的层次多样且复杂。）3. The layers of the ocean arevast and varied.（海洋的层次广阔且多样。）']
例句：
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1. The layers ofthe cake are rich and creamy.
蛋糕的层次丰富而奶油。
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2. The layers of thecity are diverse and complex.
城市的层次多样且复杂。
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3. The layers of the ocean arevast and varied.
海洋的层次广阔且多样。