antenna

Her finely-tuned political antennae helped her to sense problems that less experienced politicians might not detect.

她敏锐的政治嗅觉使她可以意识到一些问题，而经验欠丰的从政者却可能觉察不到。

The radio station installed a new antenna to improve the signal quality.

电台安装了一个新天线以改善信号质量。