Hcfcs
abbr. hydro-chlorofluoro-carbon 【化学】氢化含氯氟烃
🗣️ 情景例句
Is this your very first advanced aerobics class?
这是你第一次上有氧运动高级班吗？
Use a book as a bee does flowers.
读书如蜜蜂采花，吸取其中之精华。
I looked at it again.
我又看了看那副画。