He got a large piece of cardboard, painted a sign begging for the bicycle to be returned, and tied the sign to the letterbox.

他拿了一大块硬纸板，画了一个乞求归还自行车的牌子，然后把牌子系在了信箱上。

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For example, if your child asks about a stop sign, you can describe the sign and explain its meaning.

例如，如果你的孩子问你关于禁行标志的事，你可以描述它的样子并解释它的意思。

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If the pattern specifies a leading minus sign for negative input, a trailing minus sign is ignored.

如果该模式指定前置负号为负输入，后置负号将被忽略。

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For thousands of years, the eye of Horus remained as a sign of the god's help to the suffering and sick.

VOA: special.2009.03.22

For the Left, it was a sign that the state is strong, powerful, and can be vicious.

左派看来,它标志着国家是强大有力的,同时也可能是邪恶的

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So now we have a different sign for delta H and it still happens spontaneously.

现在自由焓的变化的符号不一样了,但是这个过程仍然自发的进行。

麻省理工公开课 - 热力学与动力学课程节选

"Hopefully it's a little bit of a sign for anybody else that things can happen - it's just a case of staying strong and believing in yourself, " he told the BBC's 1Xtra.

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As I noted then, it had completed its base formation, lines a and b, which was a positive sign for the homebuilders.

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The growing Chinese demand for smartphones, while a good sign for handset makers, also bodes well for Chinese telecom companies such as China Mobile, China Unicom and China Telecom.

FORBES: Move up http://i.forbesimg.com t Move down