A disyllabic compound word means that a disyllabic word consists of two morphemes with related or opposite meanings, but the meaning of the whole disyllabic word only takes one of them; The other morpheme is only used as a foil, and there is only one form, which only plays the role of word formation, equivalent to a fossil, also called fossil morpheme.
For example: "Talk about banquets and remember the past." "Qi" in "Qi Kuan" is congenial, while "Kuan" is alienated. Here is a compound word with partial meaning, and the meaning of "qi" is partial. "Talking about a feast" means that two kinds of feelings fit together and have a heart-to-heart talk and a feast in one place. For example, in Peacock Flying Southeast, "work and rest" emphasizes "work" and "work and rest" is translated into labor operation; The word "public sun" of "white sun" emphasizes "sun", so it is translated into mother-in-law.
If two words have the same or similar meanings, this word is called a synonym compound, such as "benefiting the state and tiring the disadvantages" in the Teacher's Watch. If the meaning of fatigue is similar to ours, it is translated into poverty and weakness.