Unt
abbr. ultrasonic nondestructive testing 超声无损检测; untrained 没有经（受）过训练的; uninephrectomy 单肾切除术; Union National Tchadienne (French=Chadian National Union) （法语）乍得民族联盟
🗣️ 情景例句
Yes, it is right.
对，是正确的。
A happy heart makes a blooming visage.
心花怒放，笑逐颜开。
Then knowledge began to be accumulated according to a systematic plan.
于是，知识便开始有系统有计划地积累起来。