The condition usually begins as a swealing swelling on the skin.Then large ulcers form.
通常病情开始于皮肤上的
块，然
形成大面积的溃
。
The condition usually begins as a swealing swelling on the skin.Then large ulcers form.
通常病情开始于皮肤上的块，然形成大面积的溃。
After surgery, there can be swealing swelling of the gums and face and some pain.
，牙床及脸部会有一些胀和疼痛。
声明：以上例
、词
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