tinkering

动词 tinker:

1. do random, unplanned work or activities or spend time idly
   同义词：putter, mess around, potter, tinker, monkey, monkey around, muck about, muck around
2. work as a tinker or tinkerer
   同义词：tinker
3. try to fix or mend
   同义词：tinker, fiddle

1. I had a tinker at your radio, but I can't mend it.
   我把你的收音机修了一下，但没修好。
2. He's been tinkering with that engine for hours, but it still will not go.
   他花了几个小时摆弄那个引擎，想修好它，但它还是不转。