n.

a line spoken by an actor to the audience but not intended for others on the stage

同義詞：aside

a message that departs from the main subject

同義詞：digressionasideexcursusdivagationparenthesis

1. The band's latest single has a great A-side that's been playing on the radio all week.
   這支樂隊的最新單曲的A面非常棒，整個星期都在電臺播放。
2. The A-side of the record features their hit song.
   唱片的A面收錄了他們的熱門歌曲。