These farmers were a jumped Up,proud lot（ who didn't know how to treat the people who worked for them.）括号中的是定语从句修饰先行词lot指一群人；一类人
翻译：这群农民是这样的一群暴发户,他们骄傲自大,不懂得怎样对待为他们干活的人.
They took advantage of the poor people's need （to get their girls off their hands）（ to get little slaves for nearly nothing.）
两个括号中的都是不定式做目的状语.
翻译：他们利用穷人的需要,把他们的女儿弄到手,几乎不花一分钱就能得到小奴隶.
The conditions were terrible
翻译：条件差极了.