广告活动可以通过测试和优化，以及数据库。
Advertising campaigns can be tested and optimized through the database as well.
这些工具提供了强大的功能，用于编写、测试和优化 regexp。
These tools give powerful ways to craft, test, and hone regexps.
人类基因组变成了需要测试和优化的大段代码，如果需要的话，甚至可以推倒重写。
The human genome becomes just so much code to be bug-tested and optimized and, if necessary, rewritten.
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