where /db2_db is a pre-existing local directory.
其中 /db2_db is是一个预先存在的本地目录。
Users can use the pre-existing Cmdlets or create their own.
用户可以使用预设定的Cmdlet，或者自己创建。
It is also possible to validate a pre-existing application GUI.
我们还可以对现有的应用程序GUI进行验证。
Her death is now thought to have been caused by this pre-existing disease.
现在认为她的死亡是由这种先存疾病造成的。
If you have a pre-existing medical condition, consult a doctor before use.
如果你有一个预先存在的医疗状况，请教医生后使用。
When building a new site I almost always use pre-existing open source code.
当我要写一个网站的时候，我总是采用已经存在了的开源程序。
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。
Insurance companies could not deny or cancel coverage for people with pre-existing conditions.
保险公司不得拒绝和取消先前存在的保险。
Under “Evidence of Pre-Existing Historical/Cultural Presence, ” he’s written, “Not that I know of.”
在“现场存在历史/文化遗迹的证据”一栏下面，他写着：“没有见到。”
Also, the existing water heater will act as a pre-heater for the entire system.
同样，现有的热水器将会当做整个系统的预热部分。
Also, the existing water heater will act as a pre-heater for the entire system.
同样，现有的热水器将会当做整个系统的预热部分。
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