There is no easy method, but the expansion of knowledge might be of some help.
没有简单方法，但扩展知识面可能会对我有所帮助。
The system expansion is extremely easy.
系统的扩展非常容易。
The expansion screw has simple structure and excellent expansion effect, and is easy to use.
这种膨胀螺丝结构简单且膨胀效果好，使用方便。
The expansion screw has simple structure and excellent expansion effect, and is easy to use.
这种膨胀螺丝结构简单且膨胀效果好，使用方便。
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