例句
When does the next bus leave for town?
下一班去镇上的公交车什么时候发车？
When cities invest in reliable public transport, residents are more likely to leave their cars at home.
当城市投资建设可靠的公共交通时，居民就更可能不开私家车出行。
常用搭配
- when necessary｜必要时
- when possible｜尽可能
- since when｜从什么时候起
词形与相关词
whenever (conj.)
用法提示
表将来的时间从句中，when后通常用一般现在时。