qiān lǐ zhī dī , kuì yú yǐ xué
An ant hole causing the collapse of a great dike.
Huge damage from a moment's negligence. (idiom)
qiān lǐ zhī dī , kuì yú yǐ xué
An ant hole causing the collapse of a great dike.
Huge damage from a moment's negligence. (idiom)