threshold of intelligibility

例句：

1. 1. The company's financial performance is at a critical threshold.
   公司的财务状况处于一个临界点。
2. 2. The new policy will have a significant impact on the economy at this threshold.
   新政策将对经济产生重大影响，达到这个临界点。
3. 3.At this threshold, the relationship between the two countries has become increasingly tense.
   在这个临界点上，两国之间的关系变得越来越紧张。