As he walked out, he told a friend, "I think I can already smell the fresh mountain air of my home in Tennessee."

VOA: special.2010.02.11

The main goal of the respiratory system is to bring fresh in so that you can extract oxygen from it, and blow used air out so that you can rid of carbon dioxide which is the end product of carbon metabolism inside our bodies.

呼吸系统的主要功能是,吸入新鲜空气,以便获得空气中的氧气,呼出废气,以便排出二氧化碳,二氧化碳是人体内碳代谢的终产物

耶鲁公开课 - 生物医学工程探索课程节选

"A one-size-fits-all approach would have put small farmers and ranchers out of business or prevented them from providing locally produced, healthy fresh food to consumers who want it."

VOA: special.2011.01.11

Officials want to use that pressure to flush fresh water out into the Gulf of Mexico to keep the oil offshore.

VOA: standard.2010.05.09

That is one of our allies is the fresh water holding the oil out in the open water as opposed to coming into the isle marshes and stuff."

VOA: standard.2010.05.09