Meaning of zōng:
zōng
踪
Noun
variant of 蹤|踪[zong1]; (bound form) footprint; trace; tracks
Tā zài xuě dì shàng liú xià le qīngxī de zōngjì.
他在雪地上留下了清晰的踪迹。
He left clear tracks in the snow.
Tā xiāoshī de wú yǐng wú zōng.
他消失得无影无踪。
He disappeared without a trace.