Uld
abbr. 超声探漏器（Ultrasonic Leak Detector）；超低剂量（ultra-low-dose）
🗣️ 情景例句
Where there's a will, there's a way.
有志者事竟成。
I'm not really sure.
我不太清楚。
and a very firm hand must be employed in the early stages.
因此开始阶段需要有一位强有力的老手。