師兄,其實冇特別神秘野,上面三個情況我獨立講解俾你睇!
朱古力那個只係每一行偷小小,偷一格朱古力出 ...
只係每一行偷小小,偷一格朱古力出來.....TOTALLY CORRECT !!!
It like primary school to count surface area in a square paper; when it large than 1/2 then count to as one
However, the movie count less then 1/2 even as one !
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