在粗糙的层次上，您通常只想在开始或结束执行代码块时自动调用不太特定的规则。
At a rough level, you usually just want to automatically call a less specific rule at either the start or the end of execution of a code block.
这些飞机通常是一些可以降落在粗糙跑道上的小飞机，也有可以降落在水面上的水上飞机。
These usually small aircraft are equipped to land on small rugged runways or, in the case of floatplanes, lakes and rivers.
生产能力强的团队通常会对松散的、不固定的、粗糙的结果感到不愉快。
Good production teams are usually offended by loose, fluid, and coarse results.
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