Udcs
abbr. Universal Decimal Classfication (图书、资料等的)国际十进分类法
🗣️ 情景例句
It's ten after six. We're late.
现在是六点十分。我们迟了。
How often did I tell you not to say a word?
我告诉你多少次不要讲话?
One man was told to fix up an air-line to provide compressed air for the machines they were using.
有个工人被派去安装"供气管"，给他们正在使用的机器提供压缩空气。