Lifespan
公共 Publicn. 预期生命期限；寿命；预期使用期限
🗣️ 情景例句
Has poor voice, diction, grammar.
嗓音，措辞，语法很糟糕。
I know the boy whose father is a pilot.
我知道那个男孩的父亲是飞行员。
How long has Kate been at her school?
凯特进校学习有多长时间了？