染指于鼎[rǎn zhǐ yú dǐng]
词典dip one's finger in the soup and have a taste：染指于鼎。
词典染指于鼎的近义词
词典be covetous：染指垂涎；染指于鼎。
染指于鼎的意思
dip one's finger in the soup and have a taste; be covetous