唱雙簧

lit. to sing a duet / fig. to collaborate with sb / also used satirically: to play second fiddle to

to sing / to call loudly / to chant

surname Shuang

two / double / pair / both / even (number)

a form of theatrical double act in which one performer speaks or sings while the other, in front, pretends to be doing the speaking or singing / double reed (as in an oboe or bassoon)

metallic reed / spring of lock