[误] There isn\'t 300 liang of silver buried here.

[正] A guilty person gives himself away by conspicuously protesting his innocence.

注：民间故事，有个人把银子埋在土里，上面写了个字条：“此地无银三百两”;他的邻居阿二把银子偷走了，也写了个字条：“隔壁阿二不曾偷。 ”

Folk tale. A man buried his silver in the ground and put up a note, saying: "Three hundred ounces of silver is not buried here." His neighbour Ah Erh stole the silver and also put up a note with this: "Your neighbour Ah Erh didn\'t steal it." ---A metaphor for one\'s being exposed by one\'s own vindication. 与上句一样，对不清楚故事背景的人，只有把一切解释得明白一点了。