freon
n. 氟里昂（一种推进剂、制冷剂或有机溶剂）
例句
Freon exists both in liquid and gaseous states.
氟利昂既有液态也有气态。
《柯林斯英汉双解大词典》
An antenna was not found inside, but a balloon with freon was there.
里面并未找到天线，而是一个装有氟利昂的气球在那里。
It's called freon. It's also used in air conditioners.
这就是所谓的氟利昂，它也用于空调。
