The main problem faced is a solution integration issue.

其主要面临的问题是解决方案如何集成。

youdao

The main problem faced here was setting the region for the line control.

面临的主要问题是这里设置的在线控制的地区。

youdao

The main problem faced by mould enterprises is how to quickly response to market changes and complete the design and manufacture of high quality mould on time.

如何快速地响应市场变化，快速按时完成高质量模具的设计制造是模具企业面临的主要问题。

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The main problem we faced was the overtly casual way in which residents treated security once they were in the bosom of the compound.

CNN: Pistorius, and the psychology of walls