Much as parents wish otherwise, trial, error, and recovery mark the adolescent learning curve of growing up.

与父母所想的很不一样，其实磨难，错误，和复原才标志着青少年正在成长过程进行曲折的学习。

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Learning how to do customizations were sometimes painful, and often a trial and error process.

学习如何进行定制有时十分痛苦，并且通常定制的过程十分琐碎且容易出现错误。

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Learning the business of music can be trial and error without the right guidance, and lead to you wasting a lot of time and money.

如果没有正确的引导，学习音乐行业的知识要经过无数次的尝试和失败，既浪费了时间又浪费了金钱。

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The ultimate goal was always to exploit the opportunity to pour cash into successful innovations before the competition, but these companies recognized that trial-and-error learning usually uncovers opportunities faster than master plans.

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