Even a 1% change in flow rate can sometimes be significant, if it is persistent, but that is not always the case.

有时，流速持续不断的改变，即使仅有1%也显得非常重要，但这种情况并不常见。

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It can work well, but if the person is persistent, you can't ignore them for long.

它能很凑效，但是如果对方很固执的话，那么你不可能忽视他很久。

youdao

But if the size of the file is known beforehand, persistent preallocation is the best route.

不过如果预先知道文件的大小时，持久化预分配是更好的选择。

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Programming experience is not required "if you are smart and persistent, " but it will certainly be easier if you have some, according to the Pi website.

ENGADGET: Cambridge University helps new Raspberry Pi users break the crust with free guide, tutorials

But it could also, if vigorously persistent, end up doing in the deal through interminable delays.

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