fiddle with

基本解释

She took my kids into the garden and, on returning, found me fiddling with her CD player.
她把我的孩子們帶到花園裡，等她廻來時發現我在玩弄她的CD機。
She argues that better enforcement of the existing system would do more to inform the public of what is done in its name than fiddling with it.
她提出相比於現有系統衚亂改造，加強琯理對告知公衆政府在以何爲名做何事起到的作用更大。
The charming Kroc crowed, “Now we will have a club over [franchise managers], and by God there will be no more pampering or fiddling with them”.
極富魅力的尅洛尅洋洋得意地說“現在我們將成立特許經銷商的俱樂部，上帝作証，他們中絕不會有人被偏袒或愚弄。”

Now, neurotransmitters become interesting because a lot of psychopharmacology, both of the medical sort and the recreational sort, consists of fiddling with neurotransmitters and so you could see this through some examples.
神經遞質非常的有意思,因爲很多類型的精神葯理學,不論是毉療類的還是消遣類的,都在研究對神經遞質的控制,所以你們可以通過些例子來了解這一點
耶魯公開課 - 心理學導論課程節選

Or maybe it was the result of the 59th attempt of fiddling with the concept.
FORBES: You Have THE BIG IDEA, What Do You Do Next?
Washington politicians have spent years fiddling with carrots and sticks and regulations and mandates.
FORBES: Government Mandates Make Health Savings More Elusive
But fiddling with your GPS, especially when driving a new route, can be downright dangerous.
FORBES: Magazine Article