borderline

柯林斯詞典

1. N-COUNT The borderline between two different or opposite things is the division between them. 分界線
...a task which involves exploring the borderline between painting and photography. …一項涉及探索繪畫與攝影之間界線的任務(wù)。
2. ADJ Something that is borderline is only just acceptable as a member of a class or group. 勉強合格的
Some were obviously unsuitable and could be ruled out at once. Others were borderline cases. 一些顯然不合適，可以馬上被排除。另一些勉強合格。