Udcs
abbr. Universal Decimal Classfication (图书、资料等的)国际十进分类法
🗣️ 情景例句
That's a great idea.
真是个好主意。
May I have a receipt?
我可以要一张收据吗？
I'd like to know how you reached your conclusions.
我想知道你们是如何得出结论的。