These blocks are like "rafts" which can drift about.

这些板块，就像“木筏”，是可以漂移的。

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They drift about lazily with the currents, providing a basic food for many larger animals.

它们随波逐流，为许多较大的动物提供了基本的食物。

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The drift about the evaluation conclusion of single method is studied inorder to offer the experiment basis for combination evaluation.

研究单一方法评价结论的漂移性，以便为组合评价提供实验依据。

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Down below, countless jellyfish drift about the hollows that run beneath the cliffs.

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In the 30 days after an event, researchers some what they described as post-event drift that averaged about 50 basis points for positive news while negative news generated little drift in the days after a report.

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Although continental crust is more or less permanent, the ocean floor is constantly recycled by the tectonic processes that bring about continental drift.

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