伴唱之歌,重叠句,隐匿之意义
Undersong \Un"der*song`\, n. 1. The burden of a song; the chorus; the refrain. --Dryden. 2. Accompanying strain; subordinate and underlying meaning; accompaniment; undertone. In the very [poetry] there often an undersong of sense which none beside the poetic mind . . . can comprehend. --Landor.