fish作動詞是釣魚的意思，過去式和過去分詞都是fished
字典解釋： VERB 垂釣;釣魚;捕魚 If you fish, you try to catch fish, either for food or as a form of sport or recreation.
例句：Brian remembers learning to fish in the River Cam.
布賴恩記得曾在劍河學過釣魚。