乙方一年一次单人北京至首尔的普通往返机票的翻译：B once a year a single normal round trip ticket from Beijing to Seoul 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

B a year in a single ordinary air tickets from Beijing to Seoul

B once a year a single normal round trip ticket from Beijing to Seoul

Second party annual single Beijing to yours ordinary round-trip airplane ticket

Party B shall once a year, people in Beijing and Seoul normal return tickets

B once a year a single normal round trip ticket from Beijing to Seoul