second class
in sing.
1- a set of people or things grouped together as the second best二等, 乙级; 二流人物, 二等品。
1.1
- mass noun the second-best accommodation in an aircraft, train, or ship（飞机、火车或轮船的）二等舱。
1.2
- Brit. the second-highest division in the results of the examinations for a university degree〈英〉（大学学位考试成绩的）第二等：
he obtained a second class in modern history.
他现代史考试得了个第二等。
1
- of the second-best quality or in the second division二等（的）; 二流（的）：
as adj. until 1914 women were thought of as second-class citizens.直到1914年妇女仍被视为二等公民。
1.1
- of or relating to the second-best accommodation in an aircraft, train, or ship（飞机、火车或轮船的）二等舱（的）：
as adj. I want second-class tickets我要二等舱的票
as adv. they don't fly second-class.他们乘飞机时不坐二等舱。
1.2
- of or relating to a class of mail having lower priority than first-class mail（较一类邮件投递速度慢的）二类邮件的：
as adj. second-class postage stamps.二类邮件邮票。
1.3
- (in North America) denoting a class of mail which includes newspapers and periodicals（北美）（包括报刊的）二类邮件。
1.4
- as adj. Brit. of or relating to the second-highest division in a university examination〈英〉（大学考试成绩）第二等的：
a respectable second-class degree.
较体面的第二等学位。