Largo es una combinación de palabras polifónicas

El pinyin lóng no es una palabra polifónica

Rongzhong, Qionglong, Banglong, Gulong, Longqing, Longsheng, Longqing, Clone, Shenglong, Narrowlong, Roarlong,

Longli, Longbo, Zulong, Youlong, Hualong, Longshang, Longji, Longchong, Qinglong, Yilong, Longchong,

Longwei, Longzong, Longjue, Longyao, Longwo, Erlong, Longji,