arr.

劍橋詞典

written abbreviation for arrive or arrival : used in timetables to show the time at which a bus , train , or aircraft reaches a place
（用于時(shí)刻表中）抵達(dá)，到達(dá)（arrive或arrival的縮寫(xiě)）
Flight 226: dep. 10.25, arr. 13.45. 226航班：起飛時(shí)間10:25，抵達(dá)時(shí)間13:45。

written abbreviation for arranged by: used before the name of the person who has arranged a piece of music
（用于音樂(lè)改編人的姓名之前）由…改編的（arranged by的縮寫(xiě)） 返回 arr.