arr.

剑桥词典

written abbreviation for arrive or arrival : used in timetables to show the time at which a bus , train , or aircraft reaches a place
（用于时刻表中）抵达，到达（arrive或arrival的缩写）
Flight 226: dep. 10.25, arr. 13.45. 226航班：起飞时间10:25，抵达时间13:45。

written abbreviation for arranged by: used before the name of the person who has arranged a piece of music
（用于音乐改编人的姓名之前）由…改编的（arranged by的缩写） 返回 arr.