1. This invasion may take an entire legion of knights to repel. 这次入侵可能需要整个军团的骑士才能击退。
2. Angiogenesis is the basis of tumor growth, invasion, metastasis and recidivism. 血管生成是肿瘤生长、侵袭、转移、和复发的基础。
3. They are said to work by simulating the body to produce antibodies—proteins that defend the body from an invasion by harmful germs. 据说这些弱化的病菌的工作原理是模拟身体产生抗体—保护身体，抵御有害细菌入侵的蛋白质。
英英解释
n.
1. the act of invading; the act of an army that invades for conquest or plunder
2. any entry into an area not previously occupied
3. (pathology) the spread of pathogenic microorganisms or malignant cells to new sites in the body
