For instance, if I wanted to change the sound that the cat is making, my God, now I have to change it on three places but like 30 places if all I've done is copy and paste.

举个例子，假如你想,改变猫的叫声，我的天啊，你现在必须改变三个地方,但是，我做了30多次复制和粘贴。

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