Drugs can slow down the progression of the disease.药物能减缓疾病的恶化。
The novel follows the progression of a woman from youth to middle age.这部小说以一个女人从青年到中年的经历为主线。
She'd always worked with old people so becoming a nurse was a logical/natural progression.她一直和老年人在一起工作,因此成为一名护士是自然而然的事。