Uld
abbr. 超声探漏器（Ultrasonic Leak Detector）；超低剂量（ultra-low-dose）
🗣️ 情景例句
Absolutely.
当然。
To be virtuous is to do good.
行善是美德。
'I'll tell you where to get off.' answered the conductor.
“我来告诉您在哪儿下车，”售票员回答说。