Uld
abbr. 超声探漏器（Ultrasonic Leak Detector）；超低剂量（ultra-low-dose）
🗣️ 情景例句
He never speaks unless he is spoken to.
除非别人先对他开口，他从不先开口。
Have another piece of cake, please.
请再吃一块蛋糕吧。
I shook my head and held up five fingers indicating that I was willing to pay $5.
我摇摇头，伸出5根手指表示我只愿出5镑钱。