Who could ever dream of a disaster like this?谁能想到会发生这样的灾难？My sons would never dream of expecting their clothes to be ironed.我的几个儿子从不指望别人帮他们熨好衣服。He had finally accomplished his dream of becoming a pilot.他最终实现了成为一名飞行员的梦想。...
Areas of necrosis and cavitation may occur within the tumor.肿瘤内可以有坏死和成腔区.Cavitation can be caused by a variety of reasons.气穴可以由各种原因引起.The total diameter of cavitation, if present, is less than 4 cm.若出现空洞, 其直径总和小于4厘米....