不过，上面运行的例子中对成功或失败的界定很不明显：成功只是意味着没有出现异常，而不表示(重定向的)输出正确。
However, success or failure in the above example run are defined very weakly: success just means no exception was raised, not that the (redirected) output was correct.
有些人可能不再需要你卖的产品，有些可能只是忘记了你，并且不可避免地，有些人可能会觉得(无论正确与否)你没有提供给他们所需要的或想要的。
Some may no longer require what you're selling, some may simply forget about you, and inevitably, some may feel (rightly or wrongly) that you don't provide what they need or want.
敬拜的方式有很多种，并没有哪一种方式是绝对正确或绝对错误的，很多情况下只是一种选择。
There are many ways to do church and none of them are necessarily right or wrong... many simply a matter of choice.
敬拜的方式有很多种，并没有哪一种方式是绝对正确或绝对错误的，很多情况下只是一种选择。
There are many ways to do church and none of them are necessarily right or wrong... many simply a matter of choice.
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