1
the longevity of [noun]
这里指产品的耐用时间或使用寿命。
The longevity of these batteries is one of their main advantages.
这些电池的使用寿命是它们的主要优势之一。
服务年限；使用期限
longevities — plural of longevity
先理解核心含义，再看它在真实句子里的用法。
服务年限；使用期限
duration of service
The longevity of these batteries is one of their main advantages.
这些电池的使用寿命是它们的主要优势之一。
持久性,尤指寿命的长久。
The quality of being long-lasting, especially of life.
任职期限；服务年限
duration of service
随时间延续的时长；持续性。
Duration over time; persistence.
长寿；寿命长的特性
the property of being long-lived
The special award recognizes the longevity of staff who have remained with the firm for over twenty years.
这项特别奖项表彰那些在公司工作超过二十年的员工的长期服务。
AI contextual example
To ensure the longevity of the printer, always use the recommended paper and ink.
为了确保打印机的使用寿命，请始终使用推荐的纸张和墨水。
AI contextual example
Many companies now offer flexible hours to increase employee longevity and reduce turnover.
许多公司现在提供弹性工作时间，以增加员工的任职年限并降低流失率。
AI contextual example
her longevity as a star
她作为明星的长久生涯
WordNet
这里指产品的耐用时间或使用寿命。
The longevity of these batteries is one of their main advantages.
这些电池的使用寿命是它们的主要优势之一。
longevity in 常表示在某行业或领域持续工作的时间。
Longevity in this industry depends on constant innovation.
在这一行业的长久发展取决于持续创新。
longevity with 强调在某机构或公司的服务年限。
Her longevity with the company was honored at the retirement party.
她在公司多年的任职在退休聚会上受到了表彰。
His longevity as a team captain is a sign of his leadership.
他担任队长之久是他领导力的体现。
Not this
My grandfather is very longevity.
Use this
My grandfather is very long-lived.
longevity 是名词，不能作 be 动词后的表语来修饰人；表达“长寿的”应该用形容词 long-lived。若要用名词，可说 have longevity。
Not this
She has long longevity.
Use this
She has great longevity.
longevity 本身意为“长寿/长命”，已经包含 long 的含义，再加上 long 会造成语义重复；表示“非常长寿”常用 great longevity，或直接说 has longevity。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
长寿研究
Advances in longevity research may one day extend the human life span.
长寿研究的进展也许有一天能延长人类的寿命。
长寿基因
Scientists discovered a longevity gene that appears to slow cell aging.
科学家发现了一种似乎能延缓细胞衰老的长寿基因。
长寿纪录
The giant tortoise holds a remarkable longevity record among reptiles.
巨型陆龟在爬行动物中保持着惊人的长寿纪录。
长寿风险
Pension funds have to plan for longevity risk because people are living longer.
养老基金必须为长寿风险做好规划，因为人们的寿命越来越长。
工龄津贴
Teachers in this district receive longevity pay after ten years of service.
这个学区的教师工作满十年后可领取工龄津贴。
长寿专家
A longevity expert explained how diet and exercise affect healthy aging.
一位长寿专家解释了饮食和锻炼如何影响健康老龄化。
Use longevities naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想 long（长）+ evity（似 ever，永恒）：长寿就是生命长久延续。注意词首是 long，别拼成 lom。
语域：neutral 常见场景：workplace、product documentation、service contracts 本词表示“服务年限”或“使用期限”时，通常用于中性或正式的书面语境，多出现在职场、技术文档和合同条款中；日常口语中较少使用。
真正同韵词：brevity、levity（/ɛvəti/）与 longevity 押韵；拼写以 -vity 结尾的 gravity、activity 并不押韵，注意元音不同。另外，longevity 开头的 long 拼写与 long 相同，但读 /lɔn/，不是 /lɔŋ/。
Dictionary facts from ECDICT, WIKTIONARY.