This natural compound, produced by the Penicillium fungus, was found to be toxic to bacteria, but safe for use in humans.

这是一种由青霉真菌产生的天然化合物，对细菌具有毒性，但可以安全地用于人类。

youdao

A large number of these securities received the highest credit ratings, including AAA, but proved to be anything but safe.

此前一大批住房抵押贷款支持证券都获得了包括AAA的最高信用评级，虽然事实证明并非如此。

youdao

Greater knowledge showed a negative correlation with the perception of being at risk for injury, but safe practices showed no correlation with perceived risk of injury.

较多的知识与对伤害危险的感知能力呈负相关，但安全操作与危险发觉能力无相关性。

youdao

But,to be on the safe side, he also places a smaller bet on the other team, to reduce a possible loss.

VOA: special.2010.01.31

So it was a little risky but safe in the end because I didn't do anything else with it.

所以它有点冒险但是最终是安全的,因为我没用它做其它的操作。

哈佛公开课 - 计算机科学课程节选

So things can be dangerous. But generally, if you're smart, I think it's a very safe place to live.

因此，危险还是存在的。但大多数情况下，只要你精明点，我认为那儿还是一个非常安全的居住地。

在上西区 - SpeakingMax英语口语达人

But safe, stable returns are what will eventually lure even the most reluctant investors into the game.

CNN: Going to the People

Bamako, sleepy but safe and fairly well run, looks nothing like the capital of the fourth-poorest country in the world.

ECONOMIST: Mali

Yes, high yield is overvalued, but safe money in the form of money market funds pays one or two basis points.

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