Remember above how the flash sends out a pre-flash?
还记得前面提到的闪光灯预闪吗？
It was not an explosion in which debris flung out into a pre-existing space.
这和爆炸后撒了一地的残瓦碎片完全是两码事。
How can I find out which substances have been pre-registered?
如何知道某类物质已经进行了预注册？
The adventure continues and you can not stay out of pre-historic fun!
冒险继续，你不能远离史前乐趣！
Therefore, it is necessary to carry out part of the performance of pre-installation testing.
因此，有必要在安装前进行部分性能的检验。
At his pre-match press conference on Friday, Wenger did not entirely rule out the move.
在周五的赛前发布会上，温格并没有完全排除转会的可能性。
At present, the work of pre-project is being carried out.
目前正在开展项目前期工作。
At present, the work of pre-project is being carried out.
目前正在开展项目前期工作。
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