Hcfcs
abbr. hydro-chlorofluoro-carbon 【化学】氢化含氯氟烃
🗣️ 情景例句
to serve the senior citizens
为Riverdale的老年人
She's a beautiful girl, don't you think so?
她是美丽的女孩，你不觉得吗？
Really? You came at a bad time of year, I'm afraid!
真的？恐怕你来的不是时候。