Relationship may be an obstacle to market entry because relationship bank's position of information monopoly can block new bank's entry.

关系可能是市场进入的障碍，银行的信息垄断地位可能阻碍新银行的进入。

youdao

Milton's own faculty of memory - this is the idea that I'm going to be floating here - seems to provide something like, or pose a stumbling block or an obstacle for, his attempt to write an original, divinely inspired poem.

在这里我想说,弥尔顿自己的记忆系统,似乎想提供某种东西，或者想在他写出一部原创的，伟大的诗作的尝试上设置一个障碍。

耶鲁公开课 - 弥尔顿课程节选