wonk

Mark spends every evening in the library; he's a real wonk.

用法提示：wonk在此作名词，意为用功的学生，带轻微贬义。

The group of wonks discussed their study strategies for hours.

用法提示：wonks是wonk的复数形式，指代多个用功的学生。

She's not just a wonk; she also enjoys outdoor activities.

用法提示：wonk与前文not just连用，强调角色不只是用功的学生。