If birds make their pupils large and small from time to time, this can be a sign that they are excited or scared or angry.

如果鸟类的瞳孔时不时地变大变小，这可能是它们兴奋、害怕或生气的迹象。

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But this was a sign of mass voting from Turkey, not of a freethinking boom.

然而这只是说明了土耳其的民众投票的积极度，而非自由思想的繁荣。

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This sign varies from company to company.

这种迹象各个公司是不同的。

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I've gone from 1 equilibrium state to another equilibrium state and the equal sign means you go from this state to that state.

从一个平衡态,过渡到了另一个平衡态,等号表示,从这个态到了那个态。

麻省理工公开课 - 热力学与动力学课程节选

A thousand economists, from leading universities across the country sign a public appeal to congressman and president, not to pass this bill, that it would not do what they said it would do, it would not reduce unemployment, it would in fact lead to retaliation it would make it harder for Americans to sell goods to other countries.

但有数千位经济学家，来自于全国各大院校,向国会和总统公开发出呼吁，不要通过限制进口法案，法案不会奏效，法案不会减少失业，事实上会招致报复,会让美国更难,同别国做交易。

斯坦福公开课 - 经济学课程节选

Is this a sign that the President is feeling political heat from this group, that he felt that he should schedule this?

WHITEHOUSE: Press Briefing

Villa agreed this month to sign Guzan from Major League Soccer's Chivas USA, and a hearing to decide whether he can have a permit has been scheduled for August 1.

CNN: Blackburn sign England keeper Robinson

From an investment perspective, this is the first sign of a major change in thinking at Apple.

FORBES: Apple Makes Play For India With 29-Cent iTunes Songs