tinker

摆弄、修修补补、瞎弄常与 with 连用

He spent all weekend tinkering with his old motorcycle.

他整个周末都在摆弄那辆旧摩托车。

微调、小幅修改常与 with 连用

The government keeps tinkering with the tax system instead of reforming it.

政府一直在对税制做小幅修改，而不是真正改革。

补锅匠、流动修补匠旧式

A traveling tinker used to mend pots in the village each spring.

从前每年春天都有流动补锅匠来村里修补锅具。

爱动手修弄的人、摆弄机械的人

He's a natural tinker who can take apart almost any engine.

他天生就爱动手修弄，几乎什么引擎都能拆开。