Uld
abbr. 超声探漏器（Ultrasonic Leak Detector）；超低剂量（ultra-low-dose）
🗣️ 情景例句
What's the deadline for claim?
索赔的有效期多长？
Sorry, She is out. Shall I take a message?
抱歉，她外出了，你要留口信吗？
There's no need for that. We'll have dinner another time.
不必为那件事惭愧。我们改个时间再共进晚餐吧。