7.he sat in the car and played the radio, fiddling with the knobs.
他坐在车着收音机的旋钮收听广播。
8.children are the losers when politicians keep fiddling around with education.
政客们不重视教育对孩子非常不利。
9."Well, we'd better get started and stop fiddling about."
"喂,我们最好开始吧,别再闲逛了。"
10.With the world’s population growing fast and millions getting hungrier every day, the leaders of the rich nations just seem to be fiddling while Rome burns.