adj.双刃的，双锋的，有好坏两种含义(或结果)的，双关的，有利有弊的

The new policy is a double-edged sword, benefiting some while harming others.
这项新政策是一把双刃剑，对一些人有利，但对其他人有害。
Freedom of speech can be a two-edged sword, allowing both constructive criticism and malicious slander.
言论自由是一把双刃剑，既可促进建设性的批评，也可能滋生恶意诽谤。
Technology advancements are a two-edged sword, improving our lives but also creating new challenges.
科技进步是一把双刃剑，既改善了我们的生活，也带来了新的挑战。
Democracy is a two-edged sword; it ensures rights but also enables populism.
民主是一把双刃剑，它保障权利，同时也可能催生民粹主义。
The internet is a double-edged sword, providing access to vast information and fostering misinformation simultaneously.
互联网是一把双刃剑，既提供了海量信息，又滋生了错误信息。
Globalization is a two-edged sword, promoting economic growth while exacerbating income inequality.
全球化是一把双刃剑，推动经济增长的同时加剧了收入不平等。
Social media can be a double-edged sword, connecting people worldwide yet fueling cyberbullying.
社交媒体是一把双刃剑，将世界各地的人们联系在一起，同时也滋生了网络欺凌。
Artificial intelligence is a two-edged sword, streamlining processes but potentially replacing human jobs.
人工智能是一把双刃剑，优化流程的同时可能会取代人类的工作。
The low-interest-rate policy is a double-edged sword, stimulating the economy but encouraging excessive borrowing.
低利率政策是一把双刃剑，刺激经济的同时可能导致过度借贷。
Genetic engineering is a two-edged sword, offering potential cures for diseases but raising ethical concerns.
基因工程是一把双刃剑，为疾病治疗提供可能性，同时也引发了伦理问题。