What's the good joke behind the cows and horses?

Looking at the ocean and sighing: originally refers to lamenting one's smallness in front of major events. Doing things now is more like feeling helpless because of incompetence or insufficient conditions.

Make people laugh, generous: it is derogatory to make people laugh.

Taicang glutinous rice; A drop from Taicang: the metaphor is very small.

Frog at the bottom of the well: Frog at the bottom of the well can only see the sky as big as the wellhead, which is a metaphor for people with short knowledge and narrow thinking.

Generous family: originally refers to people who understand the truth, and later refers to people who are knowledgeable or knowledgeable.

Summer insects are far from ice; Frozen summer insects: Metaphorically, people are limited by what they see and know, and they are short-sighted.

Joy: refers to happiness, feeling happy.

Cattle and horses don't distinguish: distinguish, no, there are many words, so I hope not to distinguish. The river can't distinguish cattle and horses on the shore. The Yuhe River has great potential.