形容詞 long-playing:

1. (used of records) playing at a slower speed and for a longer time than earlier records
   同義詞：long-play

long-play.ing

adj.（形容詞）
Relating to or being a phonograph record that turns at 33!/3 revolutions per minute.
慢轉(zhuǎn)的，密紋的：關(guān)于或作為以每分鐘33!/3轉(zhuǎn)的速度播放的錄音的