1.He’s outside tinkering around with his bike.

1.他捣鼓他的自行车。

2.She spent the afernoon tinkering about in the garden shed.

2.她花园的小棚屋里补补了一个下午。

3.They haven’t made any real changes to the system — they’ve just been tinkering around a bit.

3.他们对系统没有做出任的改进—只不过是一点补补。