In the end, advertising is a trial-and-error process.
最后，广告是一个试错过程。
You may have to find your perfect breakfast food through a trial and error process.
也许你得通过尝试才能找到最适合你的早餐食品。
Blogging, like most other things, is a trial and error process.
写博客就像大多数其他的事情一样，是个尝试错误的过程。
Blogging, like most other things, is a trial and error process.
写博客就像大多数其他的事情一样，是个尝试错误的过程。
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