Ulcera
[医] 溃疡
🗣️ 情景例句
I have spent my whole life slaving away, it's time for me to take a break and see some of this great country.
我的一生都在忙碌中度过的，现在是休息的时候了，也是去游历这个伟大国家的时候了。
They say there's a traffic accident in front of us.
据说在我们前方发生了车祸。
That's a problem we Chinese must pay special attention to.
这是我们中国人必须特别注意的问题。