The Gulf Long-Term Follow-Up Study will survey Gulf of Mexico residents who helped with the cleanup of last year's Deepwater Horizon oil spill and follow them for at least 5 years.

这个海湾长期跟踪研究将覆盖墨西哥湾沿岸帮助处理前年深海原油泄漏事件的居民，跟踪研究至少将持续5年。

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Never use a broom or a vacuum on a mercury spill because it will only scatter the mercury droplets, making them harder to find and pick up.

千万不要用扫帚或者吸尘器，因为这会使水银滴分散，使他们更加难以找到并清除。

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