American English has an expression for the unusual situation.

美式英语中有一种表达方式来形容这种不寻常的情况。

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A second way is thinking about the situation in which someone is making an expression, judging if it’s the sort where a smile would be expected.

第二种方法，人们会通过面部表情变化时，周围的情况，来判断对方微笑与否。

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"This is not a gender situation," she said with a baffled expression.

“这无关性别状况，”她带着困惑的表情说道。

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This UNESCO commissioned research explores the complex situation of freedom of expression on Internet and provides a new perspective on the social and political dynamics behind these threats to expression.

UNESCO: All Events | United Nations Educational, Scientific and Cultural Organization

And as Richard Hofstadter wrote at one point, that fear is natural in American discourse when people - or is a natural expression in American discourse when people see something threatening their social position or their social situation.

NPR: Health Care Debate: Why So Much Yelling?

Regardless of any situation, we believe that the people of Egypt have a right to freedom of expression and freedom of speech, and that includes the use of the Internet.

WHITEHOUSE: Press Briefing