Ject对"borderline" 的正确翻译：n. 边界,界线；adj. 边界的。发音：['bɔ:dəˌlain]。例句参考：I'm not sure whether to pass him or fail him; he's a borderline case. - 我拿不定主意给他及格还是不及格，他处于两可的情况下。；