Helmets, roll bars, caution flags... I like the fresh air... and looking at the poor people in the infield.

头盔，保险杠，警示旗。,我喜欢新鲜空气。,还喜欢看场上的倒霉蛋们。

耶鲁公开课 - 公正课程节选

I want to have some fresh air.

我想呼吸点新鲜空气。

I want to 实战 - SpeakingMax英语口语达人

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