Vfss
[计]= Voice Frequency Signalling System,音频信号系统
🗣️ 情景例句
I made a pig of myself.
我吃得像一头猪！
Nothing is impossible (or difficult) to the man who will try.
天下无难事，只怕不努力。
I've never laughed so much in all my life.
我这一生还从来没有笑得这样开心过呢。