fiddly

Repairing a small watch can be a very fiddly task that requires great patience.

(Chinese) 修理一块小手表可能是一项非常繁琐的任务，需要极大的耐心。

I hate using these tiny buttons on the remote control; they are so fiddly.

(Chinese) 我讨厌遥控器上这些微小的按钮，太难弄了。