Unable to achieve the expected results or successfully complete the task. Not being able to fry shredded green peppers means that it is impossible to fry shredded green peppers successfully because of unskilled technology, materials or cooking problems. As a result, it is impossible to fry green peppers and shredded green peppers to the ideal taste or mouthfeel, which is used to describe the situation that someone encounters difficulties or fails to achieve the expected goal when doing something.