1. | （火车的）二等车厢；（船的）二等舱a way of travelling on a train or ship that costs less and is less comfortable than first class . In Britain this is now usually calledstandard class . |
2. | 第二类邮件（在英国投递较第一类邮件慢，邮资也较低）(in Britain) the class of mail that costs less and takes longer to arrive than first class |
3. | 第二类邮件（美国报刊投递类别）(in the US) the system of sending newspapers and magazines by mail |
4. | [u][sing] 二级优等学位（英国大学学位等级）the second highest standard of degree given by a British university, often divided into upper second class and lower second class |
