Part of speech xiehouyu

Pinyin zh zh ma kāI HuāJie Jie gāoāo

Explanation:

Original intention: the flower of sesame is one paragraph after another;

Metaphor: Metaphor means that a person's study is getting better and better, his status is always rising or his career is booming.

Because sesame always blooms from the bottom up, it is used to describe that people are rising step by step and their lives are getting better and better.