Udcs
abbr. Universal Decimal Classfication (图书、资料等的)国际十进分类法
🗣️ 情景例句
And then, two years ago, my wife died.
接着， 两年前我妻子去世了。
I'll keep my eyes on.
我会留意的。
Though in those days, traveling was not as easy as it is today,
尽管在当时旅行不像现在这么容易，