名词
中文翻译：分层床
同义词：
['stratified soil', 'stratified rock', 'stratigraphy例句：1. The scientist found a stratified bed of fossils in the cave.（科学家在洞穴里发现了一层化石。）2. The archaeologist excavated a stratified bed of ancient pottery.（考古学家挖掘了一堆古代陶器。）']
例句：
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1. The scientist found a stratified bed of fossils in the cave.
科学家在洞穴里发现了一层化石。
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2. The archaeologist excavated a stratified bed of ancient pottery.
考古学家挖掘了一堆古代陶器。
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3.The geologist studied the stratified bed of sediment to understand the history of the area.
地质学家研究沉积层来了解该地区的历史。