hit upon
phrasal verbhit on/upon something
- [no passive] (rather informal) to think of a good idea suddenly or by chance
突然有个好主意；偶然想到妙点子 - She hit on the perfect title for her new novel.
她灵机一动，为自己的新小说想了一个绝妙的书名。
- She hit on the perfect title for her new novel.