1. We expatiated through the beautiful country.
    我们在风景秀丽的乡间漫游。

2. He expatiated on the theme of the novel.
    他阐述了那本小说的主题。

1. 详述,漫游：expand 张开,扩大,使膨胀 | expatiate 详述,漫游 | expatriate 移居国外,放逐

2. 详述：expansiveness 自高自大 | expatiate 详述 | expect 期待

3.

3. 祥述,细说：scrimp 过度缩减,节省,adj.不足的,吝啬的 | expatiate 祥述,细说 | nerve 鼓起勇气

4. 详述 细说：39.expatriate 移居国外者 | 40.expatiate 详述 细说 | 41.exorcise 驱邪 除怪

1. add details, as to an account or idea
    clarify the meaning of and discourse in a learned way, usually in writing

    e.g. She elaborated on the main ideas in her dissertation

    Synonym: elaboratelucubrateexpositenlargeflesh outexpandexpounddilate