Melbourne's large tram network has made car use in the inner city much lower, but the outer suburbs have the same car-based structure as most other Australian cities.
墨尔本庞大的轨道电车网络大大降低了私家车在市中心的使用率，但是远郊地区却与其他大多数的澳大利亚城市一样，有着同样的基于私家车的交通结构。
Scientists have three theories as to why Mercury has such an unusual inner structure.
科学家们有三个理论说明为何水星有如些不寻常的内部结构。
To show a component's inner structure, you merely draw the component larger than normal and place the inner parts inside the name compartment of the encompassing component.
为了显示组件的内部结构，你只需把组件画得比平常大一些并在名字区内放置内部的部分。
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