In Listing 2, I reopen the Numeric class (which handles both fixed and floating-point Numbers) to add the gram and pound methods.

在清单2中，我重新打开了numeric类(其处理固定和浮点数字)以便添加gram和pound方法。

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They noticed a five-pound note floating in the stream.

他们看见小溪里漂着一张五英镑的钞票。

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They noticed a five-pound note floating in the stream.

他们看见小溪里漂着一张五英镑的钞票。

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