利用这个延时，我能够精确地控制早爆炸瞬间的那个时间点拍下照片。
With this delay, I can precisely control at what point in the burst the photo is captured.
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。
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。
If there wasn't a delay, then the image would be taken before any of the balloon has really burst at all.
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