困难所在

That's where the shoe pinches.

那就是所在。

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，并指出其所在。

You must bring home to Tony where the difficulty lies.

你必须使托尼明白所在。

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

教练员说除前与中置以外,他不担心其他别置;前与中置是所在。