硬件篡改证明是可能的，并且可能有效防止复制(虽然它不是没有错误)，但其缺点还是实际应用太昂贵。

Hardware tamper proofing is possible and tends to work quite well for preventing duplication (though it is not infallible), but on the downside it is also quite expensive to place in practice.

youdao

软件可能使用了开源的开发方法因而是开源的，但它不是自由软件因为它不尊重实际使用它的用户的自由。

This software might be open source and use the open source development model, but it won't be free software since it won't respect the freedom of the users that actually run it.

youdao