一下雨你睡蓮盆中的魚就離家出走?
讓大叔用簡單的物理學原理製作一個道具，防止水滿溢出
從此不在擔心下大雨小魚會逃走了
When it rains, the fish run away from your lily pad?
Let the uncle use simple physics principles to make a prop to prevent water from overflowing
You have no worry about the fishes escaping when it rains heavily.

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