Analysis: Sweating horse is understood as sweating horse, bow and arrow, and the homonym of taking bow is work, from which we can draw the answer that it is a great contribution.
Great achievement is an idiom in China.
Description: Great contribution made in the war.
Grammar: formal; Become an object; Use praise to describe the meritorious military service.
Sweaty horse: The horse is so tired that he is sweating like a pig, which is a metaphor for struggling hard. The original refers to the great contribution made in the war. Now it means making great contributions.
"Hard work" is generally called "hard work" and is not limited to the military to describe hard work.
Idioms are stereotyped words in China's Chinese vocabulary. David has four words, and there are idioms with three words, five words or even more than seven words. Idiom is a major feature of traditional culture in China, which has a fixed structure and a fixed sentence, indicating a certain meaning. It is applied to a sentence as a whole, with subject, object, attribute and other components.
Idioms, everyone says they have become words, and so do idioms.