preservation
n. 保护，维护；保留，维持；（食物的）保存，保藏；保存的状况，保养的程度
例句
The paintings were in an excellent state of preservation.
这些绘画保存得非常好。
《牛津词典》
The central issue in the strike was the preservation of jobs.
罢工的核心问题是工作职位的保留。
The widow's gratitude for her preservation was outspoken.
这位寡妇将保全自己的感激之情一吐为快。
