expression · A late Qing dynasty policy advocating the adoption of Western science and technology to counter imperialist encroachment.

晚清时期，思想家们提出以夷制夷，主张学习西方的先进技术以保卫国家。

expression · To use foreigners to control or subdue other foreigners; a traditional diplomatic strategy of playing external rivals against one another.

这种策略实质上是以夷制夷，利用双方的矛盾来达到平衡。