Simple ulcer
[医] 单纯溃疡
🧩 词语组成解析
ulcer
['ʌlsə]
n. <医>溃疡;腐烂物;道德败坏;
🗣️ 情景例句
It was a pretty dumb thing to do.
做那件事真傻。
An old dog cannot alter its way of barking.
老狗难改吠声。
But you will get less waste from this.
但可以减少浪费。