Vfss
[计]= Voice Frequency Signalling System,音频信号系统
🗣️ 情景例句
How are you getting on with your studies?
你功课情况如何？
I'll take M/T.
那我就用信汇吧。
recorded for the slumbering scientist the strength of a shock that was too weak to waken him,and the direction from which it came.
由于地震太弱而未惊醒科学家时，就为科学家记录下了地震的强度和地震方向。