It has a very informal atmosphere, quite unlike some grand houses you visit.
它有一种非常随意的气氛,与你参观的一些豪宅不同。
It's a very informal and very free-flowing dialogue.
那是非正式和非常自由的对话。
The relationship between parents and children in America is very informal.
在美国,父母与孩子的关系很随意。
He was very informal.
他生性十分随意
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