signal 用法
Signals are the backbone of communication. Whether in the form of light waves, sound waves, electrical impulses or even body language, signals deliver information from one point to another. They’re the mainstay of our digital age, transmitting data across vast expanses at lightning speed. Moreover, they’re not just a human phenomenon. Animals use signals to achieve a myriad of tasks from finding food to warding off predators. The power of the signal therefore lies in its versatility and universality, shaping the way we connect and engage with the world around us.