那些穿着格子衬衫和乐福鞋的学生一看就是预科生。

The students in plaid shirts and loafers were obviously ___preppies.

他穿着条纹衬衫和卡其裤，看起来非常像预科学校的学生。

He looked very ___preppy in his striped shirt and khaki pants.