Ulcus
溃疡
🗣️ 情景例句
Oh, well, I'll probably remember it later.
噢， 也许过一会我会记起来。
We've got to get a sofa and a chair for the living room.
我们必须有一张沙发和椅子放在客厅。
I know.You must help me do the cooking this afternoon.
我知道。今天下午你得帮帮厨。