It was a tricky problem but I think we've licked it.

这是一个棘手的问题，但我认为我们轻而易举地把它解决了。

He and I have talked through this whole tricky problem.

他和我已经详细讨论了这一整个棘手的问题。

The existing times make the question of eating a rather tricky problem: one has to have either early dinner or late supper.

现在的时代让吃饭成为一个相当棘手的问题：一个人必须要么早吃晚餐，要么晚吃夜宵。

It's a very tricky problem.

这是个十分复杂的问题。

Flight delay is a worldly tricky problem.

航班延误是一个世界性的难题。