1. Vikings were notorious freebooters who raided coastal areas in search of plunder.
维京人是臭名昭著的掠夺者，他们袭击沿海地区以寻找掠夺品。
2. The pirates sailed the seas as freebooters, attacking merchant ships for their treasures.
海盗们以劫掠者的身份航行在海上，袭击商船夺取财宝。