翻译为英文：成群结队的情侣成了校园里一道亮丽的风景线

The sight of many couples [either for years or newly pledged] [expressing their profound love for each other] attracts much attention on campus/ has undeniably become a scene for others [observers].
简洁为佳。
注：用couple就不用lover，
scene当现场可以修饰，但当美景就不用加修饰，因为本身就当美景讲。

Couples became intensely campus is a beautiful scenic routes

Couples of lovers makes a brilliant view in campus.

those people in love become a brilliant scene in campus.

Students in love have become a splendid scene on campus.

我喜欢狂暴者的翻译