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。