Doing this will make sure you car is not going to roll after you the hand brake is released do this even on flat land JUST in CASE!
这样做可以确保在松开手刹之后，您不会溜车(为了防万一，即使是平地也因如此！)
That's not to say that it is impossible to store complex data in a flat-file database; just that doing so can be more costly in time and processing power compared to a relational database.
这不是说用平面文件数据库不能存储复杂数据，而是若这样做要比用关系型数据库耗用更多的时间和处理能力。
That's not to say that it is impossible to store complex data in a flat-file database; just that doing so can be more costly in time and processing power compared to a relational database.
这不是说用平面文件数据库不能存储复杂数据，而是若这样做要比用关系型数据库耗用更多的时间和处理能力。
应用推荐