評(píng)論
打印
What a great day for a drive! How do you likemy new Ferarri?
多么適合兜風(fēng)的天氣!你覺得我的新法拉利怎么樣?
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,收音機(jī)也很酷,所以我們?nèi)匀豢梢韵硎芸茖W(xué)時(shí)刻節(jié)目。
Hey, I think it's coming on now.
嘿,我想節(jié)目馬上就來了。
Hey, where'd the signal go?
嘿,信號(hào)去哪里了?
It must be because we're driving through a tunnel. Try an FM station.
那一定是因?yàn)槲覀冮_車穿過一個(gè)隧道的緣故。試試一個(gè)FM調(diào)頻電臺(tái)。
There it is!
有了!
How come we can hear FM longer in a tunnel than AM?
為什么我們?cè)谒淼乐心苈牭紽M調(diào)頻而不是AM調(diào)幅?
It's because FM stations transmit at higher frequencies.
這是因?yàn)镕M調(diào)頻電臺(tái)傳輸更高的頻率。
譯文來自網(wǎng)絡(luò)
