Ulcus durum
[医] 下疳
🧩 词语组成解析
溃疡
n. 硬粒小麦
🗣️ 情景例句
Speaking of being a mother,
谈到当母亲，
I'm glad to hear about you passed the test.
我很高兴得知你通过了考试。
You're from Australia, aren't you?
你是澳大利亚人，对吗？