时差N小时 隧道里没信号怎么办?(上)（在线收听）

What a great day for a drive! How do you likemy new Ferarri?

多么适合兜风的天气!你觉得我的新法拉利怎么样?

Very fancy.

非常花俏。

Best of all, the radio works, so we can still enjoy A Moment of Science.

最重要的是,收音机也很酷,所以我们仍然可以享受科学时刻节目。

Hey, I think it's coming on now.

嘿,我想节目马上就来了。

Hey, where'd the signal go?

嘿,信号去哪里了?

It must be because we're driving through a tunnel. Try an FM station.

那一定是因为我们开车穿过一个隧道的缘故。试试一个FM调频电台。

There it is!

有了!

How come we can hear FM longer in a tunnel than AM?

为什么我们在隧道中能听到FM调频而不是AM调幅?

It's because FM stations transmit at higher frequencies.

这是因为FM调频电台传输更高的频率。