And without a simple system, constant communication to spread knowledge, and feedback to steer with, it's tough to be brave.

而如果没有简单的系统、没有不断的交流来扩展知识以及没有掌握方向所依赖的反馈，勇敢也就失去了依靠。

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The node MAVs spread out to create a grid onto which virtual pheromone can be deposited and detected through local communication.

作为节点的飞行器发射信号并建立一个网格，网格上就有虚拟的“信息素”，通过本地网络就可以探测到该信息素。

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It mainly contains the digital modulate system, the SS communication theory and the direct sequence spread spectrum (DSSS) system.

主要是数字调制系统、扩展频谱通信原理和直接序列扩频系统等内容。

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New businesses and business models have emerged to make the most of the personal location information and social communication so easily shared through iPhone apps, and the successful ones have spread across all smartphone platforms.

FORBES: The iPhone Turns Four: How It Has Changed Us

Dr. Bradley's home state of Oklahoma is one of several working with the One Health Initiative, a global program to improve communication between physicians and veterinarians to prevent the spread of infectious disease from animals to people, such as recommending tick collars, sprays or topical treatments with pesticides for dogs.

WSJ: This Season's Ticking Bomb

The satellite and fiber-optic communication network, which has so far spread to 12 countries on the continent, is designed to provide connectivity between Indian institutions and 54 African countries, as well as facilitating easy video-conferencing among heads of states across Africa.

CNN: India bids to be Africa's 'new best friend'