It's not important, then, if there's a delay of a few years, or decades.
如果信号的接收会延迟几年或几十年,那么这个问题并不重要。
Should you look at the same word in rapid succession or look at the word and then have some delay before you look at it again?
你是短时间内连续看同一个单词,还是先看一遍然后过段时间再看一遍?
If there wasn't a delay, then the image would be taken before any of the balloon has really burst at all.
如果没有这个延时的话,那这个图片就只能拍到气球真正爆炸之前的画面了。
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