She's always being/getting hit on at the gym.在健身房总有人想跟她调情。

Some drunk at the bar was hitting on her.酒吧里有个醉汉在勾引她。

She thought about the problem for days before she finally hit on a solution.这个问题她考虑了好多天才想到一个办法。

He hit on a new way to do things.他找到一个做事的新方法。

We hit upon the answer accidentally.我们无意中找到了答案。