sow the dragon's teeth意思是“挑起纠纷”或“引起争端”。

【例句】
Wherever he went,he sowed the dragon's teeth by preaching racial segregation.
他无论去到哪里，都鼓吹种族隔离政策，挑起纠纷。

From the military point of view the expedition had achieved its aims. We had drawn the dragon’s teeth bait many will say we had also sown them.
从军事角度上看， 那次远征达到了目的。我们铲除了后患，不过许多人 会说我们同时也种下了祸根。