起承转合的英文：
introduction, elucidation of the theme, transition to another viewpoint and summing up; the four steps in the composition of an essay

参考例句：

The introduction, the follow-up, the transition and the conclusion
起承转合

introduction是什么意思：
n. 介绍；引进；采用；序言；入门；序曲

This is an Introduction to Biochemistry.
这是本《生物化学入门》书。

Listen to the introduction!
快听这首序曲！

This is a descriptive, not an evaluative introduction.
这是一份描述性的，而不是评量性的介绍。

elucidation是什么意思：
n. 说明,阐明

It is of profound interest to elucidate the enzymatic activities in soil
阐明土壤中酶的活性是有深远意义的。

Specific guidelines for manifold design have not as yet been elucidated
迄今还没有成熟的有关集流腔设计的方法。

The note help to elucidate the most difficult parts of the text.
这些注释有助於弄清文中最难懂的部分。

theme是什么意思：
n. 主题，核心；主旋律

The theme park is funded by private enterprises.
这个主题乐园是由私营企业投资兴建的。

This poem marries theme and style well.
这首诗的主题和风格结合得很好。

The theme of an advertisement must be clear and distinctive.
广告主题需要清晰突出。