它们看起来就像低洼的白色或灰色的孤山，又长又窄，山顶平坦，只有一米高的山。
They look like low-lying, white or grey buttes, long, narrow hills with flat tops, barely a meter high.
它陡峭的岩石边从一个宽阔的基地上拔地而起，直到在平坦的山顶下突然被切断。
Its sheer rock sides sweep up from a broad base until they cut off abruptly at the flat summit.
通常，海山底部较宽且山壁陡峭，山顶或平坦或下陷。
In general, seamounts have wider bottoms and steep sides with flat or collapsed tops.
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