第三人称单数： ulcerates
过去式： ulcerated
过去分词： ulcerated
现在分词： ulcerating

Regional lymph nodes become swollen and eventually ulcerate .

局部淋巴结先是肿胀而最后发生溃疡。

Too much worry may ulcerate his stomach .

太多的担忧，也许会使他胃溃疡。

Theinfiltrated tissue is proneto ulcerate and the process may then cause some moderate pain or discomfort .

侵入的组织很容易溃烂和随后的过程可能导致某些中度疼痛或不适.

Aspirin can ulcerate the stomach lining .

阿司匹林能造成胃壁溃疡。

The tumors are large but do not ulcerate through the skin .

瘤体大但皮肤不破溃。