to move something repeatedly between your fingers, especially without any purpose(尤指无聊地反复用手指)摆弄,捻弄,旋弄
She was twiddling (with) a pencil/her hair.她在摆弄铅笔/头发玩。
Twiddle a dial/knob on a radio in the city and you may hear voices speaking Spanish, Chinese, Portuguese, or Russian.在这座城市里,如果旋弄收音机的旋钮,你可能会收听到西班牙语、汉语、葡萄牙语或俄语。