**Ancient poetry does not necessarily divide sentences into behavioral units**.
In ancient Chinese, the way poetry is divided into sentences can vary according to different styles and styles. For example, quatrains and rhymed poems are divided into two lines as one couplet (such as the first couplet, jaw couplet, neck couplet and tail couplet), rather than one line per line.
However, the clauses of modern Chinese poetry are usually in line units, and each line usually represents a complete sentence or a complete unit of meaning. This is because in modern poetry, line breaks and sentence breaks are often used to create rhythm, emphasize semantics, and express emotion.
Thus, for modern poetry, each line can usually be considered a sentence, but this is not a general rule for ancient poetry. When reading and understanding ancient poetry, one needs to consider its historical, cultural and literary background in order to more accurately understand its meaning and emotion.