Udcs
abbr. Universal Decimal Classfication (图书、资料等的)国际十进分类法
🗣️ 情景例句
I still don't understand what you mean.
我还是弄不懂你是什么意思。
I also want to express my gratitude to all of my teachers over the years.
另外，我还想感谢这个多年来所有教过我的老师。
So one day they took him to a doctor.
于是有一天他们带他去看医生。