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 ...
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...