壁内

(1)carried on within the bounds of an institution or community; "most of the students participated actively in the college's intramural sports program"

(2)団体または共同体の中で実行される

(1)most of the students participated actively in the college's intramural sports program

(2)学生のほとんどは大学内のスポーツプログラムに積極的に加わった