In fact, all tires sold in the U.S. have to meet the same federal safety standards, and all will stand up to typical use.

实际上，在美销售的所有轮胎都必须达到同一联邦安全标准，所有的轮胎都能胜任正常的使用。

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Or when I stand behind the safety line at the luggage carousel to find my way completely blocked within seconds.

还有当我站在行李运输带的安全线后面时，只一瞬间我前面就挤满了人。

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Always practice proper tree-stand safety and wear a safety harness.

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If the United States can stand firm on environmental safety, we can do this profitably without much collateral damage.

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As a country, we promise to stand beside our public safety community and do our part to help keep America safe and secure.

WHITEHOUSE: The White House