For example: smoke cage, cold water, moon sand. (Du Mu's Bo Qinhuai)
It can be understood as follows: smoke covers cold water and sand; Moonlight is covered with sand and cold water. If you translate this sentence into: smoke blocks cold water and the moon blocks sand, the meaning doesn't make sense.
Extended data
The difference between intertextuality and duality;
1, with different definitions.
(1), duality means using a pair of phrases or sentences with the same number of words, the same structure and symmetrical meaning to express two corresponding or similar figures of speech.
(2) Intertextuality is two sentences or two parts of a sentence, which seem to say two things, but actually echo each other, explain each other, complement each other and say the same thing. A rhetorical method to express the meaning of a complete sentence by interweaving, infiltrating and supplementing the contextual meaning.
2. Different characteristics.
(1), the antithesis sentence is neat, symmetrical and rhythmic, with a harmonious tone, which is easy to remember and recite; The antithetical sentences echo back and forth, set off each other, contrast sharply, and the language is concise, which can enhance the expressive force of the language and leave a deep impression on the readers.
(2) A remarkable feature of intertextuality is that it contains the words that will appear below and the words that have already appeared above.
Baidu encyclopedia-intertextuality
Baidu encyclopedia-? Intertextual rhetoric