暴风雨或洪水看起来同样不可能是凶手。

Severe storms or floods look equally unlikely causes.

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树叶掉了，而树干仍旧高大牢固地扎根在大地上，没有风雨或冰雹能掀翻它。

Leaves fell, but the trunk stood tall, thick and firmly rooted in the ground. No wind, rain or hail could upset it.

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河流的沉淀物中含有大量的放射性物质，这些放射性物质被暴风雨或洪水冲上河滩，使那里的土壤成为放射性污染源之一。

Its sediments remain highly contaminated and tainted floodplain soils that wash up during storms and floods have now become a source of radioactive materials.

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