这样可以保持映射文件的短小，而且容易阅读。
This practice keeps the mapping files short and easy to read.
很明智，链式调用可以生成简介美观而且容易阅读的代码。
When used wisely, invocation chaining can produce concise, elegant, and easy-to-read code.
同时还应在作品及整个广告中保持空白区域，以使你的广告显得不杂乱而且容易阅读。
Keep areas of blank space around your artwork and throughout your AD as well, so your AD is uncluttered and easy to read.
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