Explain the use of dashes in the following sentences 3. I have walked into his backyard and saw a pile of withered and yellow horse grass -- all the horse grass I sold to him these days!) 4. Although there are not many children - only two, it depends on her alone ()

Explain the use of dashes in the following sentences 3. I have walked into his backyard and saw a pile of withered and yellow horse grass -- all the horse grass I sold to him these days!) 4. Although there are not many children - only two, it depends on her alone ()

3. Explanation
4. Explanation

Judge the function of dashes in the following sentences
I'm putting on my coat - my God! It's perfect - I'm all right! ()
OK - Goodbye, sir. Goodbye
Todd is a fool - born fool
You have to say forever - that's right, sir

The first function of dashes is to explain the above. This usage is similar to brackets. Their differences are: the sentences marked in brackets are only the explanation of the above, not the text, and need not be read out when reading; the sentences marked by dashes are the explanation of the previous text, and they are also part of the text, and must be read down with the context, Note the difference between the two parts. If the annotation part is the main body, use dash; if it is not the main body, use bracket. The explanation in the text is usually led out by only one dash. If this kind of sentence is inserted in the sentence and is long, double dash can be used, that is, before and after the annotation. The second function of dash is to indicate the progressive meaning, The third function of a dash is to express the change of meaning. In batch language, one meaning suddenly changes to another meaning. The content before and after a dash is not the same. The fourth function is to express the stop, pause and extension of sound, Dashes are also used to connect allegorical sayings, indicating the relationship between the subtitle and the author of words, poems and articles
Functions: ① topic conversion; ③ semantic leap; ④ the continuation of time or sound dominates the following