borderline
adjective /ˈbɔːdəlaɪn/
  /ˈbɔːrdərlaɪn/
- not clearly belonging to a particular condition or group; not clearly acceptable所属不清的;两可之间的;临界的 - In borderline cases teachers will take the final decision, based on the student's previous work.在难以定夺的情况下,教师将根据学生先前的作业作出最终评分。 
- a borderline pass/fail in an exam考试得分刚刚在及格线上/下 
- Students must achieve at least a borderline pass grade in each assessment task.学生必须在每个评估任务中至少达到一个临界及格分数。 
 Collocations DictionaryBorderline is used with these nouns:- case
 
- In borderline cases teachers will take the final decision, based on the student's previous work.