他阐述观点明确，值得赞赏。

He made his points with admirable clarity.

《牛津词典》

在弗兰纳里1994年出版的《未来的食客》一书中，他阐述了自己的论点，人类是地球上的一种新型动物，而且是一种倾向于破坏生态系统的新型动物。

In Flannery's 1994 book called The Future Eaters, he sets out his thesis that human beings are a new kind of animal on the planet, and are in general, one prone to ruining ecosystems.

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他阐述了引起粮价上涨的多种因素。

He outlined multiple causal factors for rising food prices.

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