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
How do you know so much about fishing?
你对钓鱼怎么知道这么多？
A creaking door hangs long on its hinges.
户枢不蠹。
Not to grasp firmly is not to grasp at all.
抓而不紧等于不抓。