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，指出其困难所在。

You must bring home to Tony where the difficulty lies.

你必须使托尼明白困难之所在。

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

教练员说前与中置以外,他不担心其他别置;前与中置是困难所在。

That's where the shoe pinches.

那就是困难所在。