依葫蘆畫瓢

1. • lit. to draw a dipper with a gourd as one's model (idiom)
2. • fig. to follow the existing pattern without modification

Character by character

• 依(yī)depend on
• 葫(hú)
• 蘆(lu)rush
• 畫(huà)draw
• 瓢(piáo)dipper