"We want to assure everybody that our airports are very safe, having just passed American Investigation and Security Administration audit in November 2009.

VOA: standard.2009.12.28

And so they're already very safe, very effective vaccines available for many infectious diseases.

所以这些疫苗非常安全有效,常备用来对付各种传染病

耶鲁公开课 - 生物医学工程探索课程节选

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

"What we found is that live donation is very safe, the risk of dying from donating a kidney is 3 in 10,000 which is much lower than the risk of almost any other operation that you can undergo."

VOA: standard.2010.03.11

Engineers who are developing new materials, materials that can be, if you think about it, there's not very many things that you would want to put in your eye and you'll feel comportable to put in your eye so this is a very safe, a very inert material.

工程师们不断研制新的材料,这些材料应该是,想想吧,能让你们敢于,放到眼睛里的,并令人感到舒适的材料并不多,这应该是一种非常安全非常稳定的材料

耶鲁公开课 - 生物医学工程探索课程节选

"Our goal is to make a very inexpensive stove let's say five dollars that makes very,very little smoke, so it's safe for health, diminishes global warming and diminishes deforestation.

VOA: special.2010.02.01

But it's very safe. However, you have to remember that it's still New York,

但它非常安全。然而你还是要记得，这里是纽约，

在上西区 - SpeakingMax英语口语达人

Experts say the vaccine is safe and very effective.

VOA: special.2009.05.26

No, I haven't. For me, personally, I have been very surprised that New York has been so safe.

那倒没有。就我而言，我因纽约城如此安全而感到惊奇。

在上西区 - SpeakingMax英语口语达人

And she was very good at it. She also seemed to feel most safe when she was at home with her mother and father, or riding a horse on her family's land.

VOA: special.2009.07.26