pre-exist

音标发音

No visual tooling is provided, and no pre-defined handlers exist.
没有提供任何可视化工具，并且不存在任何预定义的处理程序。
The result showed that:(1)the subjects with the computer-based illustrating tool scored higher significantly than the subjects with pre-exist illustration;
结果表明，（1）基于计算机的插图工具下的测验得分显著高于预置插图；
The pre-exist amphibolite facies rocks in the fracture belt have been superimposed by retrograde green-schist facies with neoformation of chlorite, anthophyllite, sericite and cordierite.
断裂破碎带岩石在先存的五台期角闪岩相变质岩之上，叠加了绿片岩相动力退变质作用，普遍出现绿泥石、直闪石、绢云母、堇青石等新生的变质矿物。

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This is an out-of-the-blue kind of pre-emptive legislation dealing with a problem that doesn't even seem to exist.
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