Ulcus durum
[医] 下疳
🧩 词语组成解析
溃疡
n. 硬粒小麦
🗣️ 情景例句
That's impossible.
不可能。
Jack is up and about now.
杰克病后复原了。
The teacher gives one of them an eraser.
教师给其中一人一块橡皮擦。