- 释义：
- adj. 不拘礼节的，随便的；非正式的
- 例句：
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Sometimes formal English and informal English must be carefully distinguished.
有时候正式英语与非正式英语要十分小心地加以区分.
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Holmes used an informal, chatty tone in his essays.
霍姆斯在文章中语气轻松随便.
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Dress at the party was informal, with no neckties or fancy dresses.
晚会上人们的服装很随意, 不打领带,也没穿高档的西服.
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