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。

youdao

There is no level of radiation that is completely safe.

不存在任何绝对安全的辐射能级。

youdao

As long as she held it in her hand, she would be completely safe.

只要她手里拿着这个美分，她就会很安全。

youdao

"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