名词
中文翻译：主波纹
同义词：
['main wave', 'main ripple']
例句：
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1. The waves on the ocean were so powerful that they could easily break the shoreline.
海洋上的波浪如此强大以至于它们可以轻松地冲垮海岸线。
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2. The main ripple in the river was caused by a sudden change in the current.
河流中的主要波动是由水流突然改变引起的。
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3. Main ripples can be seen in the ocean floor, indicating the presence of large underwater structures.
在海洋底部可以见到主要的波动，表明存在大型水下结构的存在。