1. Because node structures go in only one direction, they know nothing about the sequence of nodes that precede them. 由于节点结构只指向一个方向,所以它们完全不了解它们之前的节点的顺序。
2. They may suggest radiotherapy to the lymph nodes above your supraclavicular fossa. 他们可能建议你对锁骨上窝上方的淋巴结进行放射治疗。