1、major：
英[ˈmeɪdʒə(r)] 美[ˈmedʒɚ]
adj. 主要的; 重要的; 大调的; 主修的（课程）;
n. 专业；主修科目; 大调; 陆军少校; 成年的;
vi. <美>主修，专攻; [美国英语][教育学]主修(in); 专攻;
例句：
（1）The major factor in the decision to stay or to leave was usually professional.
职业上的考虑往往是决定去留的主要因素。
（2）At this point, executives are beginning to realize major cleaning and maintenance of the hotel the importance of continuing operations.
此时，高层管理者开始意识到专业清洁保养对饭店持续经营的重要性。
（3）I think that London has attached itself to the best of any major city in the world to understand all the implications of globalization.
我认为伦敦已成为世界最优秀的主要城市之一，它很清楚全球化意味着什么。
（4）The major made a wise choice; he took the full glass and a biscuit.
少校也十分聪明地拿了那只斟满的酒杯和一块饼干。
（5）"It was a major victory for us because we made a big study of Korea and their tactics, " he said.
他说：“这场胜利对我们很重要，我们仔细研究了韩国队的技战术。”
2、 specialty
英[ˈspeʃəlti] 美[ˈspɛʃəlti]
n. 专业，专长; 特点，特别事项; 特性，特质; <律>盖印的契约;
adj. 特色的; 专门的; 独立的;
例句：
（1）His specialty is international law.
他的专业是国际法。
（2）Specialty tea is the fastest-growing segment of the industry, as most of the big coffee houses have included a line of such teas, he said.
特种茶中增长最快的部分行业，因为大多数的大咖啡馆还包括一系列的这种茶，他说。
（3）Because the screens are smaller, such mobile traffic tends to be driven by specialty software, mostly apps, designed for a single purpose.
因为屏幕变小了，这种移动数据传输趋向由专用软件驱动，一般而言，是为单一目标而开发的应用。
（4）On arrival the outside floor indicator shows a whole arrow which keeps changing colours, making it a specialty.
当抵达时外面的楼层显示器会显示一整个会维持变色的箭咀，是这里的特色。
（5）Talk about your specialty or two or three key strengths you have that are relevant to the company's needs.
谈谈自己的专长或是与公司的需要有关的两道三个强项。
空山微风
