每秒30萬公里的道別
Someone may have told you: “When you look at the stars in the night sky, you are really looking into the past. All the stars you see are already dead.”
或許有人跟你說過：「當你仰望夜空中的星星，你看到的其實是過去，你看到的所有星星都已經死去了。」
may have=might have=第三類條件句;假設過去的事件past(n.)(adj.)過去(的)
But is this true? It’s partly true.
但這是真的嗎？這個說法只說中了一部分。
true(adj.)正確的;如實的partly(adv.)部分地;某種程度上
Light travels at an incredibly fast speed of about 300,000 kilometers per second.
光以每秒約30萬公里的速度高速行進。
travel(v.)旅行;行進incredibly(adv.)難以置信地;極其He got incredibly angry when he heard the news.
The stars we see are so far away that it takes years for their light to reach our eyes.
我們看到的星星離我們非常遠，需要花上很多年的時間才能被我們看見。
take(v.)拿;需要花上多少時間reach(v.)抵達;達到
The brightest star in the night sky is Sirius, which is about 8.6 light years away.
夜空中最亮的星星是天狼星，它距離我們8.6光年之遠。
bright(adj.)明亮的bright-brighter-brightest
That means, if—for some reason—Sirius suddenly blew up, we wouldn’t even notice until 8.6 years later.
這表示，若天狼星因某種因素突然爆炸了，我們得等到8.6年後才會注意到這件事。
blow up=爆炸;炸毀;炸死blow-blew-blownThe terrorists blew up the station.notice(n.)告示牌(v.)注意到;感覺到You will not even notice the pain in your foot.not...until...=直到~才~(until 引導表時間的名詞片語或副詞子句)
The farthest star we can see with our naked eye is Deneb, which is nearly 3,000 light years away.
我們肉眼所及最遠的星星是天津四，它離我們近三千光年之遠。
far-farther-farthestnaked(adj.)裸露的
Think about this: The light we are seeing from Deneb right now began its journey towards us before ancient Rome was even established.
想想：我們此時此刻看到的天津四發出的星光，早在古羅馬建立以前就開始朝地球行進了。
journey(n.)旅程;行程It is a one-hour journey from Taipei to Hsinchu.ancient(adj.)年代久遠的;古老的They discovered an ancient site during the construction.establish(v.)建立;創立;設立establish diplomatic relations=建立外交關係The university was established in 1890.
So, it’s true that some of the stars we see now are already dead, but don’t worry; we aren’t running out.
因此，我們所看到的一些星星確實已經死亡了，但別擔心，我們還有其他星星。
worry(v.)(n.)擔憂;擔心run out=耗盡;用完run out of timerun out of petrolMy cell phone battery is going to run out soon.
Some stars can live for trillions of years and, as stars die, many new stars are also born—we just might not be able to see some of them for another few thousand years.
有些星星可以活上幾兆年，況且星星死去，同時也有其他星星誕生，我們只是得等到幾千年後才看得到它們。
trillion(n.)兆as(conj.)當...;隨著be born=出生;誕生be able to RV=有能力做某事