n. 寿命
在线英汉词典
life-span的短语、例句：
life-span n length of time that sth is likely to live, continue or function 寿命; 生命期限; 使用期; 有效期
Some insects have a life-span of no more than a few hours. 有些昆虫寿命只有几小时.

标签：life-span,用法,音标,短语