song /sɔŋ/ n. 1.［c］歌曲：sing pretty (sweet) songs 唱优(甜)美的歌曲；the national song 国歌；songs of victory 凯歌；popular songs 流行歌曲；a marching song 进行曲  2.［u］唱歌，音乐：break into song 唱起歌来; deeds that move people to song and tears 可歌可泣的事迹