我们测试过这个方法，但是发现如果要扩展它的伸缩性，代价太高。
We tested this approach for MU, but found it was too expensive to scale past a certain point.
如果要扩展现有控件的功能，可以通过继承创建一个由现有控件导出的控件。
If you want to extend the functionality of an existing control, you can create a control derived from an existing control through inheritance.
接下来公司会面临到的挑战是什么？同时如果要扩展，哪些议题是要强调注意的？
What are the challenges the company faces going ahead and what issues does it need to address in order to expand?
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