Definition
to adjust something in minor ways in an attempt to fix or improve it
調整；擺弄
He kept fiddling with the machine, trying to make it run more smoothly.
他不停地擺弄機器，試圖讓它運轉得更順暢。
During the meeting, she kept fiddling with her notebook, trying to find a better way to take notes.
在會議期間，她不停地擺弄筆記本，試圖找到更好的記筆記方法。
If you're not satisfied with the candidates' performance, maybe you could fiddle with the interview questions a bit.
如果你對候選人的表現不滿意，也許你可以稍微調整一下面試問題。
to handle or move objects with your fingers due to anxiety or boredom
（因焦慮或無聊而）用手指擺弄
He was anxious during the meeting and kept fiddling with the pen on the table.
他在會議中很焦慮，一直擺弄桌上的筆。
In the boring class, students began to fiddle with their phones.
在無聊的課堂上，學生們開始擺弄他們的手機。
While waiting, she unconsciously fiddled with her earrings.
等待時，她無意識地擺弄她的耳環。