强 ㄑㄧㄤ ˊ qiáng 弩 ㄋㄨ ˇ nǔ 之 ㄓ zhī 末 ㄇㄛ ˋ mò 強 ㄑㄧㄤ ˊ qiáng 弩 ㄋㄨ ˇ nǔ 之 ㄓ zhī 末 ㄇㄛ ˋ mò lit. an arrow at the end of its flight (idiom) fig. spent force