Many dogs in the United States sleep in safe little houses near their owners' home.

VOA: special.2010.05.30

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

Biking in traffic is never safe, but you can make it a little bit safer.

上街骑单车不会绝对安全，但你可以采取点措施让它相对安全点。

喜欢自行车 - SpeakingMax英语口语达人

"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