文件齐全的卡车司机过站要缴纳9美元的过路费，不齐全的则要成倍缴纳。
Officers demand a $9 bribe if a lorry driver’s papers are in order and multiples of that if not.
可是我在这里要着重提醒一下，Sideline的源代码遵循BSD许可。因此如果有兴趣，开发者完全可以在此代买的基础上将这款应用扩展成功能齐全的Twitter客户端。
It is important to note, however, that Sideline's source code is licensed under the BSD license, so any interested developer could take the code and extend the application into a full Twitter client.
外来物种入侵带来的出乎意料的后果让人想起了生态学家奥尔多·利奥波德的名言：“理想补救要兴起，零件齐全是前提。”
And the unexpected consequences of the invading species bring to mind this well-known comment by ecologist Aldo Leopold: “To keep every cog and wheel is the first precaution of intelligent tinkering.”
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