DICT.TW Dictionary Taiwan

 按圖索驥 [ㄢˋ ㄊㄨˊ ㄙㄨㄛˇ ㄐㄧˋ; an4 tu2 suo3 ji4]
 lit. looking for a fine horse using only a picture (idiom)
 fig. to do things along rigid, conventional lines
 to try and find sth with the help of a clue
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