I opened the box to see my phone, only to find a happy birthday card with 20 dollars in it.

然后我打开他们送我的手机盒子，只见里面放着一张贺卡和20美元钞票。

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For example, for "wrong" guesses, only the unselected box was opened, and the child was told to look inside " Aw, too bad."

比如说，在猜错的情况，只有没被选择的盒子会被打开，小孩会被吩咐去看里面“呃，太糟了。”

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I opened the box, only to find it was empty.

我打开盒子，却发现是空的。

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