Driving sheep and fighting wolves
This is a metaphor for a weak attack on a strong one.
Idioms and allusions
Source: Tang Lun Zhong written by Zhang Lei of Song Dynasty: "the emperor of Ming Dynasty and the heavy soldiers could not fight against the strong horse of Yan Dynasty
Discrimination of words
Usage: used as predicate and attributive; refers to great disparity of power
Driving sheep and fighting wolves
Eight Immortals crossing the sea - bā xiān guò hǎi,gè xiǎn shén tōng
Fill the pit and fill the valley - tián kēng mǎn gǔ
to be in deep anxiety day seems like a year - dù rì rú nián