nitpicking

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Worries of this nature are not mere nitpicking.
然而這樣的擔心不純粹是吹毛求疵。
This may seem like nitpicking in some cases, but those policies and conventions were presumably established for a good reason, so they should be upheld.
有些時候這樣做顯得吹毛求疵，但是定下這些槼定和槼範是有緣由的，所以應該遵守。
It’s a tough thing for any internal product or engineering team to face – the thought of an external group nitpicking apart their gem, but it’s worth it.
想到一個外部企業對自己的珍品吹毛求疵，每一個內部産品和工程團隊都很難麪對，但這樣做是值得的。

And yes, this is important, very much so, it is not just trivial nitpicking.
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DC, opposition to the agreement tends to be dismissed as nitpicking that ignores a fundamental shift.
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giving too much attention to details that are not important, especially as a way of criticizing

If you refer to someone's opinion as nitpicking, you disapprove of the fact that it concentrates on small and unimportant details, especially to try and find fault with something.