帮我分析一下句子成分

帮我分析下面句子的句子成分：
For some applications, such as switching thousands of Internet packets, capacity trumps cost.

That is why long-distance communications in rich coun-tries now travel primarily over optical fiber.

And it is why Cisco spent half a billion dollars over the past four years to create an optical router,debuted this past May, whose 30 fiber-optic lines run at 40 gigabits per second (Gbps)-inprinciple, enough aggregate bandwidth to handle the Internet traffic of 1.6mil-lion DSL-equipped households.
分析一下句子成分，最好能帮我翻译，谢谢

For some applications, such as switching thousands of Internet packets, capacity trumps cost.
主语：capacity
谓语：trumps
宾语：cost
状语：For some applications, such as switching thousands of Internet packets,
对于一些应用，例如交换成千上万的Internet分组，容量胜于价格。

That is why long-distance communications in rich countries now travel primarily over optical fiber.
这就是发达国家的长途通信主要通过光纤传送的原因。
主语：That
谓语：is
表语：（表语从句）why long-distance communications in rich coun-tries now travel primarily over optical fiber.
从句中成分分析：
主语：long-distance communications
定语：in rich countries （修饰communications）
谓语：travel
状语：now（时间状语）
状语：primarily over optical fiber.（方式状语）

And it is why Cisco spent half a billion dollars over the past four years to create an optical router,debuted this past May, whose 30 fiber-optic lines run at 40 gigabits per second (Gbps)-in principle, enough aggregate bandwidth to handle the Internet traffic of 1.6mil-lion DSL-equipped households.
这就是cisco公司在过去的四年里耗资十亿美元制造并在刚刚过去的五月份投放市场的光路由器的原因，这种光路由器的30条光纤以40Gbps的速率传送信息，大体上拥有足够的带宽处理160万DSL接入用户所产生的互联网流量。
主语：it
谓语：is
表语：（表语从句）why Cisco spent half a billion dollars over the past four years to create an optical router,debuted this past May, whose 30 fiber-optic lines run at 40 gigabits per second (Gbps)-inprinciple, enough aggregate bandwidth to handle the Internet traffic of 1.6mil-lion DSL-equipped households.
从句中成分分析：
主语：Cisco
谓语：spent
宾语：dollars
定语：half a billion（修饰dollars）
状语：over the past four years（时间状语）
状语：to create an optical router（目的状语）
定语从句：whose 30 fiber-optic lines run at 40 gigabits per second (Gbps)-in principle, enough aggregate bandwidth to handle the Internet traffic of 1.6mil-lion DSL-equipped households.
定语从句成分分析：
主语： 30 fiber-optic lines
谓语：run
状语：at 40 gigabits per second (Gbps)

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