According to the query Baidu Library, the difference between transitive sentences and declarative sentences lies in:

1. Different definitions: A declarative sentence refers to stating a fact. What we see is mostly declarative sentences. Transitive sentences refer to what others say. For example, Xiao Ming said yesterday, "I skipped class the day before yesterday." This is a transitive sentence. Yesterday, Xiaoming said that he skipped class the day before yesterday.

Second, the implicit number is different: the transitive sentence conveys what others say, without quotation marks in the sentence, and the quotation sentence directly quotes what others say, with quotation marks in the sentence.

Third, the person is different: when the quoted sentence becomes a transitive sentence, the speaker, the first person "I", should be changed to the third person "he" or "she". For example, Zhang Tong said: "I must insist on long-distance running exercise" was changed to: Zhang Tong said that he must insist on long-distance running exercise.