It is not only poor in the reliability, high cost, high failure rate shortcomings, but also in layers increases, changes to the wiring and installation of manufacturing has brought many unchanged.
它不仅存在着可靠性差、成本高、故障率高等缺点，而且在层数增加时，配线变化给制造及安装带来诸多不变。
Model-View-Controller model is a useful tool kit, it has many advantages, but there are also some shortcomings.
模型-视图-控制器模式是一个有用的工具箱，它有很多好处，但也有一些缺点。
Model-View-Controller model is a useful tool kit, it has many advantages, but there are also some shortcomings.
模型-视图-控制器模式是一个有用的工具箱，它有很多好处，但也有一些缺点。
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