翻译　The economy was a considerable issue in the campaign.
（在竞选运动中经济是一个重要问题。）
同义替换　important adj. 重要的，重大的 major adj. 主要的；重要的 crucial adj. 重要的；决定性的
obscure [?b?skj??(r)] adj.不著名的，不重要的；费解的，模糊不清的v.使变模糊，掩盖
例句　Very few people could understand his lecture because the subject was very obscure.
很少人能听得懂他的讲座，因为主题太难理解了。
衍生　obscurity n.费解；不出名
翻译　Although this technique sounds more obscure（尽管这技术听起来更晦涩难懂） than the first variant, it actually has found wider acceptance in the industry.