这些卫星天线接收来自太空的信号。

These ___antennas receive signals from space.

蚂蚁用它的触角感知周围的环境。

The ant uses its ___antennae to sense the surrounding environment.

作为销售，他敏锐的商业嗅觉总能捕捉到新机会。

As a salesman, his business ___antennae always pick up new opportunities.