他还没说完最后一句话，索尔比太太早就发出一阵低低的、快活的笑声。

Mrs. Sowerby was laughing a low comfortable laugh long before he had finished his last sentence.

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最后我们在屋子里飞来飞去，划出一道道笑声的彩虹。

Then we flew around our house in a rainbow of laughter.

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而且当你最终成功时，最后听到的笑声将是你自己的声音。

And when you finally do succeed, the last bit of laughter heard will be your own.

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