●ˈhit on sth ( ˈhit upon sthmore formal) (not used in the progressive tenses不用于进行时) to think of a plan, a solution, etc. suddenly or by chance突然想出,偶然想到(主意、计划等)◆She hit on an idea for raising money. 她灵机一动,想到了个筹款的主意。◆I realized I’d hit upon a solution to one of our main problems. 我意识到我碰巧找到了解决一个主要问题的方法。OBJidea, method, formula, solution SYNlight on/upon sb/sth ➡ note at think sth up[v + prep]