Occurrance of cancer的用法和樣例：
例句
- Substantial evidence shows that inflammation promotes oncogenesis and, occasionally, participates in cancer rejection.
充實(shí)的證據表明炎癥能夠促進(jìn)腫瘤發(fā)生，偶爾也會(huì )參與癌癥排斥。 - The imbalance between neutrophil elastase and neutrophil elastase inhibitor may be the cancer possible mechanisms of development.
粒細胞彈性蛋白酶及其拮抗劑失衡是導致腫瘤發(fā)生的重要原因。
