1. Many abolitionists fought for the liberation of enslaved individuals by challenging slaveholders' authority.
许多废奴主义者通过挑战奴隶主的权威来争取奴隶的解放。

2. The economic system in that era heavily relied on the labor of enslaved people, with slaveholders profiting from their work.
那个时代的经济体系严重依赖奴隶的劳动，奴隶主从中获利。