Or will the mystery be revealed... through a sign?

秘密或者会不会披露…通过一个信号？

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For a long time, China have already delivered a benedictory tradition through a sign.

很久以来，中国就有通过符号传递祝福的传统。

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Common research has long held that talking themselves through a task helps children learn, although doing so when you've apparently matured is not a great sign of brilliance.

长期以来，普遍的研究认为，在完成一项任务时自言自语有助于孩子的学习，尽管很显然，长大后这样做并不是聪明的表现。

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It could be a sign that GM has recovered from the bankruptcy and restructuring it went through last year.

VOA: special.2010.11.17

Their caskets come through this village and hundreds line the street as a sign of respect.

VOA: standard.2009.11.11

Practically, what this all means is that for the first time marketers can speak specifically to those users who they know something about and have already built a relationship with, either on Facebook or through a sign-up at a brick and mortar store, or an opt-in email program, or any other online or offline channel.

FORBES: Facebook's Ad Platform Finally Gets It Right

Already, he says, out of 1.5 million monthly visitors, 350, 000 arrive without following a link through another site, a sign that an audience is building through usage and word of mouth.

FORBES: Magazine Article

No matter which device the music was purchased on, it can be accessed on all other devices through a single Toshiba sign-on.

ENGADGET: 7digital named European music partner for Toshiba connected TVs