Syhilis, in its primary form , may produce a chancre on the lips.原发型梅毒可在唇上产生下疳....

chancre的音标：chancre的英式发音音标为：['ʃæŋkə(r)]chancre的美式发音音标为：['ʃæŋkər]...

n.下疳，硬下疳...