1. That has the advantage of a natural antonym: closed societies. 它具有以下优点：一个天生的反义词——封闭社会。
2. Learning an antonym for each new word can help you increase your vocabulary. 学习新词的反义词也可以扩展你的词汇量。
3. As a diachronic po int of view, the development of antonym represents not only the antonym itself, but also the progress of the lexis. 从历时的角度看，反义词的发展不但体现了反义关系的演变，而且反映了词汇的发展。
英英解释
n.
1. a word that expresses a meaning opposed to the meaning of another word, in which case the two words
