1, purple gas from the east
Dongying lai
Explain that before Lao Tzu crossed Hangu Pass, Guan Yinxi saw the purple gas coming from the east and knew that there was a legend that saints wanted to pass. Sure enough, I came riding a green cow. This old metaphor is a symbol of good luck.
The source item "Biography of Youxian": "I went west, making the yin see purple and floating customs, and I passed by Qingniu."
Structural subject-predicate idioms
Usage subject-predicate type; As objects and attributes; Include praise
Step 2 draw a tiger dog
Wa ·hǔ· incarnation leygu
Interpretation class: images. You can't draw a tiger, but it looks like a dog. Metaphor can't imitate home, but it is neither fish nor fowl.
The source "The Biography of Ma Yuan in the Later Han Dynasty": "It doesn't work in Ji Liang, but it's trapped in the world. The so-called painting a tiger does not paint a dog. "
Structural contraction idioms
Usage and language; As predicate and attribute; derogatory sense