例句：
Their ire was directed mainly at the government.
他们的愤怒主要针对该政府。
The pike lives mainly in large rivers and lakes.
梭鱼主要生活在大的江河湖泊里。
Her job is mainly concerned with sales and promotion.
她的`工作主要是销售和广告宣传方面的。
He eventually found his niche in sports journalism.
最后他在体育新闻界找到了理想的工作。
Political reporting has become a staple of American journalism.
政治报道已经成为美国新闻业的一个重要内容。
He began a career in journalism, working for the Rocky Mountain News.
他开始从事新闻事业，供职于落基山新闻报。