投ㄊㄡˊtóu井ㄐㄧㄥˇjǐng下ㄒㄧㄚˋxià石ㄕˊshí

  1. 比喻見死不救，加以陷害。也作「投阱下石」、「投石下井」。

英to throw stones at sb who fell down a well (idiom)​; to hit a person who is down