困难所在

And finally, we will explain action from the physicalist view and point out its difficulties.

最后我们将从物理主义观点来说明行动，并指出其困难所。

You must bring home to Tony where the difficulty lies.

你必须使托尼明白困难之所。

The coach said he wasn’t worried about any position except quarterback;that was where the shoe pinches.

练员说前与位置以外,他不担心其他别位置;前与位置是困难所。

That's where the shoe pinches.

那就是困难所。