1. Zi (pinyin: yuán) is the second-level word of Chinese general specification. This word first appeared in Shang Dynasty Oracle Bone Inscriptions and Shang Dynasty bronze inscriptions. Its ancient glyph looks like a hand grasping one end of a stick, and the lower one grasping the other end, indicating pulling and drawing. Therefore, the original intention is to pull and lead, and the word "aid" is later used to express this intention. Therefore, it is used as a noun. He is also an auxiliary word, which is placed at the beginning or end of a sentence.
2. Word combinations: Man, Li, Fu, Ju, _ Shan, Jin, Shu, Ji and Tu.