Udn
abbr. ulcerated dermal necrosis 皮肤坏疽溃疡
🗣️ 情景例句
We have a wide connection in U.S.A.
我们在美国各地有广泛业务关系。
I'd like to sit in the front of the plane.
我要坐在飞机前部
We often call him by his nickname.
我们经常叫他的绰号。