However the researchers can? T be absolutely sure that the two signals they measured were dark matter and not some other particle, which they call background.

但研究者们还是不能绝对确信他们所测到的两个信号跟暗物质有关，因为有可能是背景的其他粒子干扰所致。

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The standard issue party T-shirts may not please the fashion-conscious, but new clothes can be hard to come by for Liberia's poor.

官方发布的党内竞选T恤并不能引领潮流，而这样衣服也不会穿在穷人的身上。

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But according to a new study co-authored by Psychology Professor Daniel T. Gilbert, that traditional belief may not be entirely true.

但由心理学教授Daniel t . Gilbert主持的一项研究来看，这个传统的观念不那么正确。

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She had a husband and a daughter, but they didn't seem to be important--not either of 'em.

VOA: special.2010.05.15

The problems that Frost's poetry poses for us as readers are not problems of reference. They can't be solved by footnotes.

他的诗歌给我们的困难,不是参考的问题，它们不能就用脚注解决。

耶鲁公开课 - 现代诗歌课程节选

Or perhaps, you could be trying to explain that you don't know whether you can do something or not by a certain date.

又或者，你正在试图解释你没法确定你是否能在一个指定日期前做完某件事。

I don't know 课堂 - SpeakingMax英语口语达人

The lesson: build a cheap, stable deposit base, and don't be shy not to lend.

ECONOMIST: The bust is starting to catch up with regional lenders

Prasugrel won't be, not any time soon.

FORBES: Magazine Article

Incidentally, if you're examining which new responsibilities should be devolved to Wales - if any - then there's a feeling that it wouldn't be politic not to consider whether evidence points to any powers going the other way.

BBC: Commission keeps calm and carries on