卧 ㄨㄛ ˋ wò 薪 ㄒㄧㄣ xīn 尝 ㄔㄤ ˊ cháng 胆 ㄉㄢ ˇ dǎn 臥 ㄨㄛ ˋ wò 薪 ㄒㄧㄣ xīn 嚐 ㄔㄤ ˊ cháng 膽 ㄉㄢ ˇ dǎn lit. to lie on firewood and taste gall (idiom); fig. suffering patiently, but firmly resolved on revenge