1. You can't travel first-class with a second-class ticket.
   你不可以拿二等票坐头等位子旅行。
2. I want to change to first class.
   我想改为头等舱。
3. The cooking in this restaurant is first class .
   这家餐馆的烹饪属一流水平。
4. These hand - embroider ones are all first class goods.
   这些手绣织品都是一等品。
5. The first-class compartments are in front.
   头等车室在前面.

　3个名词解释