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first class

adverb
🔊/ˌfɜːst ˈklɑːs/
🔊/ˌfɜːrst ˈklæs/
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  1. using the best and most expensive seats or accommodation in a train, plane or ship乘坐头等座位（或车厢、舱）
    • to travel first class乘头等舱旅行
    Topics Transport by bus and trainb1, Transport by airb1
  2. (in the UK) by the quickest form of mail（英国）按最快投递邮件
    • I sent the package first class on Monday.我于星期一以最快投递邮件寄出包裹。🔊🔊
  3. (in the US) by the class of mail that is used for letters（美国）按第一类邮件

first class

noun
🔊/ˌfɜːst ˈklɑːs/
🔊/ˌfɜːrst ˈklæs/
 [uncountable]
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  1. the best and most expensive seats or accommodation on a train, plane or ship头等座位（或车厢、舱）
    • There is more room in first class.头等舱更宽敞。🔊🔊
    Topics Transport by bus and trainb1, Transport by airb1
  2. (in the UK) the class of mail that is delivered most quickly第一类邮件（在英国投递最快的邮件）
    • First class costs more.第一类邮件邮资较高。🔊🔊
  3. (in the US) the class of mail that is used for letters第一类邮件（在美国用于投递信件和明信片）
  4. the highest standard of degree given by a British university一级优等学位（英国大学学位等级）Topics Educationc2