束带蛇通过 VNO 探测到来自蚯蚓（它们最喜欢的食物之一）的化学信号，然后它们利用这个信号来追踪它们的猎物。

Garter snakes detect a chemical signal from earthworms—one of their favorite foods—via the VNO, and they use this signal to track their prey.

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德国发出了一个信号，这个信号在印度和其他国家，以及在德国的移民社区，都得到了明确的响应。

Germany was sending a signal, one that was clearly received in India and other countries, and also by Germany's own immigrant community.

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这个信号可能会让邻国更加戒备。

That signal may prompt greater wariness from neighbors.

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That signal is carried here, for example, by the concentration of second messengers - the concentration of something else.

这里这个信号由,第二信使的浓度,即另一种物质的浓度来传递

耶鲁公开课 - 生物医学工程探索课程节选

It might be getting a signal from this receptor and a signal from this receptor, and a signal from this receptor.

细胞可能同时从这个受体,这个受体,以及这个受体接收信号

耶鲁公开课 - 生物医学工程探索课程节选

This densely tangled thicket of clustered consonants in this amazing couplet is a signal to us of the weight, of the import, of this terrible event.

这个密集杂乱的灌木丛,在这个对句中，弥尔顿给我们传递出一个信号，在这个可怕的事件中。

耶鲁公开课 - 弥尔顿课程节选