If it's not under 'sports', try looking under 'games'.

如果在“体育运动”项下查不到，就试试“游戏”项吧。

《牛津词典》

Under the circumstances, it seemed better not to tell him about the accident.

在这种情况下，不告诉他有关这次事故的情况似乎更好。

《牛津词典》

Katy could think clearly when not under stress.

凯泰在没有精神压力时能够清晰地思考。

《柯林斯英汉双解大词典》

Some also worry that officers could be sued under the law by people who accuse them of not doing enough enforcement.

VOA: special.2010.07.03

So I went back to Engineering and told them, "OK, guys, we need to work harder. And I'm not under CEO.

于是我跟工程师团队说到，大家还要加把劲。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

He says not only does arsenic belong under phosphorus, I predict that there is an element that lies below aluminum and above indium.

他认为不仅砷属于在磷下面，我预言还有一个元素,是在铝之上和铟的下边的。

麻省理工公开课 - 固态化学导论课程节选

They also seem to be claiming libel (that might work under UK laws but clearly not under US given the differences) plus defamation and online impersonation.

FORBES: Twitter And The Streisand Effect: Steve Auckland Should Grow A Pair

Unlike the Barry Bonds and Roger Clemens case, in which both baseball stars testified before a federal grand jury and Congress and were accused of lying under oath, Armstrong was not questioned by federal authorities under oath, and therefore was not exposed to potential criminal perjury charges in the Los Angeles case, the source said.

CNN: January 19, 2013 -- Updated 0035 GMT (0835 HKT)

But it has an obligation under statute not to "impact on the existing or future gas market".

BBC: MLA claims low cost home heating scheme at risk