我爸爸喜欢在周末摆弄他那辆旧摩托车。

My dad likes to ___tinker with his old motorcycle on weekends.

那个修补匠走街串巷修理锅碗瓢盆。

The ___tinker traveled around mending broken pots and pans.

他整个下午都在摆弄收音机，试图改善音质。

He spent the whole afternoon ___tinkering with the radio to improve its sound quality.