Elements of all these play a part, but the underlying problem is deeper.
所有这些因素都占了一部分的原因，但是根本的问题是更深层次的。
I think that the underlying problem is education, unemployment and bad housing.
我认为深层的问题在于教育、失业和糟糕的住房条件。
The underlying problem is that cable plants have not been built for high reliability.
其根本问题是电缆线路设备不是按高可靠性建起来的。
The underlying problem is that cable plants have not been built for high reliability.
其根本问题是电缆线路设备不是按高可靠性建起来的。
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