天羅地網(wǎng)（天羅地網(wǎng)）　

◎ 天羅地網(wǎng) tiānluó-dìwǎng

[nets above and snares below;dragnet that the criminals have no way to escape] 天上、地下到處是羅網(wǎng)。形容上下四方盡被包圍,無路可逃