No substance that has the power to do this is completely safe.

任何有能力做到这一点的物质都不是完全安全的。

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"No drug is completely safe, and that includes medical drugs as well as illegal substances," he said.

他说：“没有百分之百安全的药，包括医疗药物和非法药物。”

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Nobody's data is completely safe.

没有一个人的数据是完全安全的。

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"Monster energy drinks are completely safe, and we stand behind our products, " she said in an email.

WSJ: Energy-Drink Makers Face New York Probe

Collett says fishermen are completely safe on Falcon Lake as long as they follow the unwritten rules.

CNN: A 'stupid' mistake or murder?

Does this mean that Hong Kong is completely safe now as a technology center for Asia and for China?

FORBES: Why Hong Kong Is China's New Tech Hub