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attending (school, college, etc.); being enrolled; being a student
彼女は現在も大学に在学中の四年生の学生だ。
She is a student currently enrolled at university.
アルバイトの応募に在学証明書を発行してもらった。
I had an enrollment certificate issued.
在学期間中にインターンを経験した。
I had an internship during my enrollment period.