finicky

释义：形容词，表“过分讲究的，苛求的，挑剔的”，finicky about sth.表示对某件事很精益求精，在留学文书中可以作为serious和picky的同义词进行替换，达到丰富词汇的目的。

例句：
When the pickings are this good, bears can turn finicky.
The original readers were finicky about reading card swipes -- and didn't work with the iPhone 4's external metal antenna band.