Usc
abbr. 超声波清洗（Ultra Sonic Cleaning）；联合海运公司（United Shipping Company）；美国国会（United States Congress）
🗣️ 情景例句
When the wind blows,
风儿轻轻吹
Thank you for your attention.
谢谢大家专心聆听。
Were you at butcher's, too?
您也在肉店里吗？