--Why did the little boy throw the butter out the window?
--To see the butterfly.
--你為什麼把那根黃油（butter）扔到窗外去？
--我想看butterfly。
【說明】butterfly是「蝴蝶」，拆為butter fly就是「黃油飛」。
再看一個例子：
A: Jay. what are you doing with that stick of butter?
B: I’m going to throw it out the window. I want to see the butter fly.
A: Don't be silly! Buttercan't fly! But a butterfly can. Let's into the garden and see if we can find one.
A：傑伊。你拿那根butter（黃油）幹什麼？
B：我要把它扔出窗外。我想看butterfly（蝴蝶）。
A：別傻了！butter（黃油）不能飛！但butterfly（蝴蝶）可以。我們到花園裡去看看能不能找到一個。