This can sometimes reveal a hardening or lump that signals a tumor.这样有时能发现硬物或肿块,这是肿瘤的信号.Areas of necrosis and cavitation may occur within the tumor.肿瘤内可以有坏死和成腔区.The surgeon cut away the tumor with expert skill.外科大夫以熟练的技术...
小标题一律居中.Subheads should be placed in the middle of the column.小标题C的其余原则都与标准和执行有关.The remaining provisions of subtitle C relate to standards and enforcement.事实上, 你可以认为得加上一些包含关键词短语的小标题.In fact, think about inserting extra ...