So why go to all the trouble of meeting other life forms in person when you can chat via radio?

既然可以通过无线电聊天，那么为什么还要麻烦地去见其他生命形式的人呢？

Earhart actually spoke to the people on the ship via radio during her flight.

埃尔哈特在飞行期间实际上通过无线电与船上的人交谈。

The traffic controller tried to engage with  the pilots via radio but received no reply.

交通管制员试图通过无线电与飞行员联系，但没有收到回复。

They attempted to reach out via radio, but the  plane did not respond to the distress signals.

他们试图通过无线电联系，但飞机没有回应求救信号。

We might download an email to our phone via radio waves to open an image of an X-ray print, which we can see because our screen emits visible light.

我们可以通过无线电波下载一封邮件到手机上以打开X射线印出的一张图，我们可以看见这些是由于屏幕发出可见光。

This is based on a simple idea: if aliens are out there, it's easier to stay home and talk via radio than through the interstellar version of the Pony Express.

如果外星人在外面，呆在家里通过无线电交谈就比通过星际版的快马邮递要容易得多。

It is usually carried by runners, but it has traveled on a boat, on an airplane (and the Concorde), on horseback, on the back of a camel, via radio signal, underwater, and in a canoe.

它通常由跑步者携带， 但它曾在船上、飞机（和协和式飞机）、马背上、骆驼背上、通过无线电信号、水下和独木舟旅行过。