按图索骥

1. • lit. looking for a fine horse using only a picture (idiom)
2. • fig. to do things along rigid, conventional lines
3. • to try and find sth with the help of a clue

Character by character

• 按(àn)press
• 图(tú)diagram
• 索(suǒ)surname Suo
• 骥(jì)thoroughbred horse