sticking point

卡住的地方／／癥結點／要害／關鍵
a problem or point on which agreement cannot be reached, preventing progress from being made.


Health care is one of the main sticking points.

衛生保健是谈判的主要癥結點之一。


The main sticking point is the integration with the ad servers 
主要症结是整合与广告伺服器

Where is the sticking point 
卡在哪里