But the professional companies prospered in their permanent theaters,/and university men with literary ambitions were quick to turn to these theaters/ as offering a means of livelihood.

　　断句：原则：长度适中和语法结构完整

　　方法：寻标志，断长句

　　标点：标点：逗号;短语：as短语

　　成分分析：

　　主干：But the professional companies prospered and university men were quick to turn to these theaters

　　修饰：in their permanent theaters 状语，修饰but前半句

　　with literary ambitions 定语，修饰名词men

　　as offering a means of livelihood 方式状语，修饰and后半句

　　翻译：

　　但是专业的剧团在它们固定的剧院中兴盛起来，怀揣文学抱负的大学生们讯速地投奔这些剧院，将其视为谋生的手段。