Startled, the man dropped his bucket down the well and spun around.

那个男人吓了一跳。水桶掉到了井里。他迅速转过身来。

It’s been bucketing down all day.

【bucket】倾盆大雨已下了一整天。

And I remember putting the buckets down in every 20 meters or so and how the handles digged into my hands.

我记得每隔20米左右就把水桶放下，把手是如何挖到我手中的。

Usually I would say " It's bucketing down" if it's raining really hard but if it's raining cats and dogs, it's probably best to stay inside.

如果雨真的下的很大的话，我通常会说“大雨倾盆”，但是如果说“瓢泼大雨”的话，可能最好还是待在室内。