They demanded more pay and safer working conditions.

VOA: special.2010.08.12

And if you stay out here, then you know, you're kind of a little more safer,

如果你呆在这儿，你就稍微安全一点，

圣莫妮卡和洛杉矶 - SpeakingMax英语口语达人

I think the smallpox vaccine we made now would probably be better, more effective, and safer than the vaccines we made in the '50s.

我相信若我们现在制造天花疫苗,应该会比五十年代的更有效更安全

耶鲁公开课 - 生物医学工程探索课程节选

"I can tell you it's more quiet over here, and the people over here feel safer,"

VOA: standard.2010.01.02

He says people are living in safer and more resilient homes and communities.

VOA: standard.2009.12.26

At the conference,in London health-sector officials from around the world came together to try to find ways to make hospitals safer and stronger so that when disasters happen, health facilities will be more resilient.

VOA: standard.2009.10.14