Udcs
abbr. Universal Decimal Classfication (图书、资料等的)国际十进分类法
🗣️ 情景例句
I'm through with you!
我们之间完了。
The firemen fight fires and rescue people.
消防队员和火灾搏斗，拯救人们。
Are you married or single?
你结婚了吗？