I went to a computer shop and bought two DVD-R DL disc in case one if it fails to burn, at least I still have another one to try before going to shop and buy more DVD-R DL discs.
我去了一个电脑商店买了两个DVD - R DL的光盘案件之一，如果它未能烧伤，至少，我还有另外一个来尝试才去商店，并购买更多的DVD - R DL光盘。
Before I buy this car, I want to try it out.
在买这辆车这辆车之前，我要先试车。
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