名词
中文翻译：冲积期
同义词：
['colluvium', 'alluvial例句：1. The erosion of the riverbed during the colluvial period has created a series of natural landscapes.（河流在冲积期期间的侵蚀形成了一系列自然景观。）']
例句：
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1. The erosion of the riverbed during the colluvial period has created a series of natural landscapes.
河流在冲积期期间的侵蚀形成了一系列自然景观。
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2. The study of colluvial deposits is crucial for understanding the geological history of the region.
研究冲积沉积物对于理解该地区的地质历史至关重要。
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3. The colluvial deposits have been used as building materials for centuries.
这些冲积沉积物被用作建筑材料几个世纪了。