Udcs
abbr. Universal Decimal Classfication (图书、资料等的)国际十进分类法
🗣️ 情景例句
Well, for one thing, he's my sister's boyfriend. Ann talks about Jack all the time.
首先，他是我妹妹的男朋友。安整天就是杰克长杰克短的。
Do you understand?
你明白了吗？
It's not his work that bothers me; it's his attitude.
困扰我的不是他的工作，而是他的态度。