評論
打印
Curiosity can call home
好奇號可借助
using two ultra-high-frequency radios.
兩個超高頻天線與我們聯(lián)系
But the distance between Mars and Earth,
但是火星與地球間遙遠的距離
together with the rover's limited power,
再加上火星車有限的功率
makes it difficult to pick up the signal.
使接收信號變得十分困難
It's a problem anyone with a car radio knows well.
有車載收音機的人都明白這個問題
We're about a hundred miles outside of Los Angeles.
我們離洛杉磯已經有幾百公里遠
In the car, I've got the radio going,
在車里 我依然能收到廣播
but my favourite radio station is almost gone.
但我最喜歡的電臺已經幾乎沒信號了
I'm not that far, certainly compared to Mars,
與火星地球之間距離相比 這并不很遠
and the radio station that I listen to
并且我收聽的這個電臺
has a 90,000-watt transmitter,
擁有一臺九萬瓦的發(fā)射機
and so you'd wonder why I can't pick up the station here.
你可能會問 為什么在這里收不到信號
The problem is my little antenna
問題是我的車載小天線
is just not capable of picking up the signal at this distance,
就是不能接收到那么遙遠的信號
no matter how powerful it seems the transmitter back at home is.
這與電臺發(fā)射器功率的大小無關
重點解釋：
1.pick up 收集
例句：I am able to pick you up on the short wave radio.我能用短波收音機收聽到你的信號。
2.capable of 能夠
例句：Show your teacher what you are capable of.向你的老師表現出你的才能。
3.no matter how 無論如何
例句：No matter how hard he may try, he will not succeed.不管他怎么努力去干都不會成功的。
