Sfsu
abbr. signal frequency signaling unit 信号频率信令单元
🗣️ 情景例句
You're a valuable asset, Malcolm.
你是很有价值的资产， Malcolm。
Would you call back tomorrow?
你能明天回个电话吗？
Yesterday my husband removed the gate and Rex got so annoyed we have not seen him since.
昨天，我丈夫把门卸了下来，雷克斯很生气，此后我们便再也没有见到它。