。
She lived a long life.
Literal
She [topic-は] long-lived.
長生きする ('to live long') is a compound verb treated as a single concept — it's not 長く生きる (to live for a long time) but 長生き (longevity) + する. 長生き is also used as a noun: 長生きの秘訣 ('the secret to longevity'). Extremely concise.